· 2014. 7. 23. · 124 cleo/qels & cleo: applications and cleo: expo• may 16–21, 2010...

124 CLEO/QELS & CLEO: Applications and CLEO: Expo • May 16–21, 2010

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Exhibit Hall 3

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7:00 a.m.–5:00 p.m. Registration Open, San Jose McEnery Convention Center, Concourse Level

8:00 a.m.–10:30 a.m. Joint CLEO/QELS Plenary Session, Civic Auditorium

10:00 p.m.–5:00 p.m. Exhibit Open, San Jose McEnery Convention Center, Exhibit Halls 1, 2 and 3

10:30 a.m.–12:00 p.m. Coffee Break/ Exhibit ONLY Time, San Jose McEnery Convention Center, Exhibit Halls 1 and 2

11:00 a.m.–12:00 p.m. Lunch Break (on your own)

12:00 p.m.–1:30 p.m.JWA • Joint CLEO/QELS Poster Session II

QELS 03. Metamaterials and Complex Media

JWA1Focusing Light in a Curved-Space, Danilo H. Spadoti, Lucas H. Gabrielli, Carl B. Poitras, Michal Lipson; Cornell Univ., USA. We use transformation optics to demonstrate 2-D silicon nanolenses, with wavelength-independent focal point. The numerical and experimental results show lenses focusing light over a broad wavelength range, from 1.15 μm to 1.60 μm.

JWA2An Optical “Janus” Device with Multiple Func-tions Based on Transformation Optics, Thomas Zentgraf1, Jason Valentine1, Jensen Li1,2, Nicholas Tapia1, Xiang Zhang1,3; 1Univ. of California at Berke-ley, USA, 2City Univ. of Hong Kong, Hong Kong, 3Lawrence Berkeley Natl. Lab, USA. We present a new approach of designing single optical elements that possess simultaneously multiple distinct func-tions. Based on quasi-conformal mapping of the optical space we realized the elements in a silicon environment at near-infrared wavelengths.

JWA3Scalable Cylindrical Metallo-Dielectric Metama-terials, Nicholas Gibbons, Mathias Kolle, Jeremy J. Baumberg, Ullrich Steiner; Univ. of Cambridge, UK. We report a new approach for scalable manu-facturing of Metamaterials fabricated through floating and rolling-up of flexible metallodielectric stacks. Such structures have unusual nonlinear optical properties and potential superlensing applications.

JWA4Nonlinear Optical Properties of Layered Multi-Metal Nanostructures, Canek Fuentes-Hernandez, Daniel Owens, Joel M. Hales, Joseph W. Perry, Bernard Kippelen; Georgia Tech, USA. We report on the temporal and spectral dynamics of the nonlinear optical response of transparent Ag/Au multi-metal layers and Fabry-Perot resonators with 10× enhancement compared with Ag and with comparable transparency in the visible.

JWA5Metamaterial Reflector for Hollow-Core Infrared Fiber Design, Min Yan1, Niels Asger Mortensen2; 1Royal Inst. of Technology, Sweden, 2Technical Univ. of Denmark, Denmark. The metal-wire based metamaterial is found to be able to reflect TM-polarized light with a higher efficiency compared to plain metal. The prospect of such medium for designing a hollow-core infrared fiber is investigated.

JWA6Metamaterial Tuning Using near-Field Interac-tion, David A. Powell1, Mikhail Lapine2, Maxim Gorkunov3, Ilya V. Shadrivov1, Yuri S. Kivshar1; 1Australian Natl. Univ., Australia, 2Univ. of Seville, Spain, 3A. V. Shubnikov Inst. of Crystallography, Russian Federation. We show theoretically and experimentally that by adjusting the lattice con-figuration we are able to manipulate the near-field interaction of resonant particles, and thus tune the response of a lattice of split-ring resonators.

JWA7Paper Withdrawn

JWA8Opto-Elastic Anisotropy in Stretched Polymer Photonic Crystals, Andreas Kontogeorgos1, David Snoswell1, Chris Finlayson1, Jeremy J. Baumberg1, Peter Spahn2; 1Univ. of Cambridge, UK, 2Deutsches Kunststoff-Inst., Germany. Using a new technique for single-domain shear-ordering of elastomeric photonic crystals we demonstrate novel opto-elastic properties. Tensile stress experi-ments demonstrate coupled mechanical and opti-cal anisotropy, producing striking colour tuning depending on the stretch direction.

JWA9Visualizing Invisibility: Photorealistic Depic-tions of Optical Cloaks and Other Instruments in Natural Environments, Aaron J. Danner; Natl. Univ. of Singapore, Singapore. Visually stunning animations and images of invisibility devices and perfect imaging instruments will be presented. The ability to see the effects of dispersion, polarization dependence, and loss on performance aids the design of realistic devices.

JWA10Optical Black Hole: Design and Performance, Alexander V. Kildishev1, Ludmila J. Prokopeva2, Olga V. Shtyrina2, Mikhail P. Fedoruk2, Evgenii E. Narimanov1; 1Birck Nanotechnology Ctr., School of Electrical and Computer Engineering, Purdue Univ., USA, 2Inst. of Computational Technologies, Russian Acad. of Sciences, Russian Federation. We analyze a realistic optical black hole using the exact frequency domain solutions. Example structures working at 1.5 µm and including thin separating layers between the absorbing core and the metamaterial shell are presented.

JWA11Extreme Nonlinear Optical Regime Supported by Metamaterials: Beam Transverse Power Flow Reversing, Alessandro Ciattoni1, Carlo Rizza2, Elia Palange2; 1Consiglio Nazionale delle Ricerche, CNR-SPIN, Italy, 2Dept. di Ingegneria Elettrica e dell’Informazione, Univ. dell’Aquila, Italy. We consider specific metamaterials hosting a novel extreme nonlinear regime where the linear and nonlinear dielectric responses are comparable, a regime supporting peculiar beams whose power flow direction reverses its sign along the trans-verse profile.

JWA12Quasi-Planar Optics: Computing Light Propaga-tion and Scattering in Planar Waveguide Arrays, Sukosin Thongrattanasiri1, Justin Elser1, Viktor A. Podolskiy1,2; 1Oregon State Univ., USA, 2Univ. of Massachusetts at Lowell, USA. We have developed a new mode matching technique capable of accurate numerical computation of wave coupling in arrays of planar structures. The algorithm is illustrated on several examples of plasmonic and volumetric waveguides.

JWA13Photonic Transport in Complex Crystals with PT Symmetry, Stefano Longhi; Politecnico di Milano, Italy. Coherent transport in complex crystals with PT-symmetry under dc or ac fields is investigated. Exotic transport phenomena are predicted at PT symmetry-breaking and related to a highly non-reciprocal Bragg scattering.

JWA14Time-Domain Modeling of Metal-Dielectric Nanostructures, Ludmila J. Prokopeva1, Joshua Borneman2, Alexander V. Kildishev2; 1Inst. of Computational Technologies, Russian Acad. of Sciences, Russian Federation, 2Birck Nanotechnol-ogy Ctr., Purdue Univ., USA. We study second-order complex Padé approximants that give a systematic approach to time-domain modeling of dispersive dielectric functions including the classical Drude, Lorentz, Sellmeier and the critical points models.

JWA15SHA Modeling of Gold Gratings for Oblique Light Incidence, Zhengtong Liu, Kuo-Ping Chen, Xingjie Ni, Vladimir P. Drachev, Vladimir M. Shalaev, Alexander V. Kildishev; Purdue Univ., USA. We use spatial harmonic analysis (SHA) to model gold double-strip gratings under obliquely incident light. The simulation results are compared to experimentally measured values and excellent matches are achieved.

JWA16Polarisation Effects on Anderson Localisa-tion in the Presence of Metamaterials, Ara A. Asatryan1, Lindsay C. Botten1, Michael A. Byrne1, Valentin D. Freilikher2, Sergey A. Gredeskool3, Ilya V. Shadrivov4, Ross C. McPhedran5, Yurii S. Kivshar4; 1Univ. of Technology, Sydney, Australia, 2Bar-Ilan Univ., Israel, 3Ben-Gurion Univ. of the Negev, Israel, 4Australian Natl. Univ., Australia, 5Univ. of Sydney, Australia. We have derived an elegant and effective equation to characterise the Anderson localisation length in one-dimensional systems that may contain metamaterials and have undertaken a comprehensive study, uncovering a number of striking polarisation effects.

JWA17Understanding Optical Activity and EIT-Analogous in Optical Metamaterials with an Analytical Multipole Analysis, Joerg Petschu-lat1, Christoph Menzel2, Arkadi Chipouline1, Carsten Rockstuhl2, Andreas Tuennermann1, Falk Lederer2, Thomas Pertsch1; 1Inst. of Applied Phys-ics, Friedrich-Schiller-Univ. Jena, Germany, 2Inst. for Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Univ. Jena, Germany. We describe the different optical responses of geometrically related metamaterials with an ana-lytical method based on multipoles. Metamaterials affecting the polarization eigenstates or mimick-ing EIT-like phenomena can be understood and explained on simple analytical grounds.

JWA18Nonlinear Nanocomposites for Three-Dimen-sional Photonic Crystals Using Two-Photon Polymerization, Baohua Jia1, Dario Buso2, Jiafang Li3, Min Gu1; 1CUDOS, Faculty of Engineering and Industrial Sciences, Swinburne Univ. of Technol-ogy, Australia, 2CSIRO - Materials Science and Engineering, Australia, 3Lab of Optical Physics, Inst. of Physics, Chinese Acad. of Sciences, China. We developed a novel nanocomposite consisting of an organic-inorganic hybrid polymer modified with PbS quantum dots. The uniformally dispersed nanocomposite has high third-order nonlinearity and has been proven to be suitable for photonic crystal fabrication.

CLEO2010Wednesday.indd 1 4/14/10 8:56:33 AM

125Concurrent sessions are grouped across four pages. Please review all four pages for complete session information.

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Exhibit Hall 3

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7:00 a.m.–5:00 p.m. Registration Open, San Jose McEnery Convention Center, Concourse Level

8:00 a.m.–10:30 a.m. Joint CLEO/QELS Plenary Session, Civic Auditorium

10:00 p.m.–5:00 p.m. Exhibit Open, San Jose McEnery Convention Center, Exhibit Halls 1, 2 and 3

10:30 a.m.–12:00 p.m. Coffee Break/ Exhibit ONLY Time, San Jose McEnery Convention Center, Exhibit Halls 1 and 2

11:00 a.m.–12:00 p.m. Lunch Break (on your own)

JWA • Joint CLEO/QELS Poster Session II—Continued

JWA19Control of Linear Dichroism in Metamaterial-Twisted Nematics Structure via Photo-Isomer-ization, Boyoung Kang1, J. Woo1, E. Choi1, Hyun-Hee Lee1, E. S. Kim1, J. Kim1, Tae-Jong Hwang2, Young-Soon Park2, D. H. Kim2, Jeong W. Wu1; 1Ewha Womans Univ., Republic of Korea, 2Yeung-nam Univ., Republic of Korea. Linear dichroism in metamaterial-twisted nematics structure of nano meta surface is controlled via photoisomerization process. Azo twisted nematic cell structure enables the switching on-off of meta-induced resonance by trans-cis-trans isomerization when irradiated by UV light.

QELS 01. Quantum Optics of Atoms, Molecules and Solids

JWA20Photon Localization in an Atom-Waveguide System, Ting Chen, Ren-Bao Liu; Chinese Univ. of Hong Kong, Hong Kong. In a coupled atom-waveguide system, we show the vacuum Rabi oscillation and a bound polariton state near the lower cut-off frequency, which reveal the strong coupling between a discrete atomic state and a photonic continuum.

JWA21Spatial Quantum Memory Based on Coherent Population Oscillations, Asaf Eilam, Arlene D. Wilson Gordon, Harry Friedmann; Bar-Ilan Univ., Israel. We show that a system characterized by long-lived coherent population oscillations (CPO), such as a two-level system that decays via a shelving state, can be used to construct a spatial quantum memory.

JWA22Electromagnetically Induced Transparency in Cesium Vapor with a Single Photon Probe Beam, David Höckel, Lars Koch, Oliver Benson; Humboldt-Univ. zu Berlin, Germany. An experi-mental setup designed to store light pulses inside a cesium vapor cell by employing electromag-netically induced transparency (EIT) is described. Probe laser pulses containing ~10 photons per pulse are delayed through the EIT effect.

JWA23Metamaterial Based Broadband Engineering of Quantum Dot Spontaneous Emission, Harish N. S. Krishnamoorthy1, Zubin Jacob2, Evgenii Na-rimanov2, Ilona Kretzschmar3, Vinod M. Menon1; 1Dept. of Physics, Queens College of CUNY, USA, 2Birck Nanotechnology Ctr., School of Electrical and Computer Engineering, Purdue Univ., USA, 3Dept. of Chemical Engineering, CUNY, USA. We report the broadband (~ 25 nm) enhancement of radiative decay rate of colloidal quantum dots by exploiting the hyperbolic dispersion of a one-dimensional nonmagnetic metamaterial structure.

JWA24Characterisation of Emission Lifetime of Nitrogen-Vacancy Centres in Nanodiamonds, Luke Stewart, Carlo Bradac, Judith Dawes, Michael Steel, James Rabeau, Michael Withford; Macqua-rie Univ., Australia. We show that the lifetime of nitrogen vacancy emitters can be increased by incorporating nano-diamonds inside opals and the lifetime variance may be reduced by placing them on the surface of opals.

JWA25Atom Bunching with Ultracold Metastable Helium, Andrew G. Manning, Sean S. Hodgman, Robert G. Dall, Mattias T. Johnsson, Kenneth G. H. Baldwin, Andrew G. Truscott; Australian Natl. Univ., Australia. We measure the second order correlation function for metastable helium atoms released from an ultracold trap source and observe bunching between thermal atoms. When correla-tions between Bose-Einstein condensed atoms are measured no bunching is observed.

JWA26Coherence Properties of Spontaneous Paramet-ric Down-Conversion Pumped by 1 Multi-Mode cw Diode Laser, Osung Kwon, Young-Sik Ra, Yoon-Ho Kim; Pohang Univ. of Science and Tech-nology, Republic of Korea. Coherence properties of the biphoton generated via SPDC pumped by a multi-mode cw diode laser are studied with a Mach-Zehnder interferometer.

JWA27Weak Value Measurement with an Incoherent Measuring Device, Young-Wook Cho, Hyang-Tag Lim, Young-Sik Ra, Yoon-Ho Kim; Dept. of Physics, Pohang Univ. of Science and Technology, Republic of Korea. We generalize the weak value measure-ment to include generalized situations in which the measuring device is in a mixed state. We also report an optical implementation of the weak value measurement with the incoherent pointer.

JWA28Nanofiber Optical Interfaces for Laser-Cooled Atoms, Síle Nic Chormaic1, Kieran Deasy2, Laura Russell1, Mark Daly1; 1Univ. College Cork, Ireland, 2Cork Inst. of Technology, Ireland. In this work we present results on the use of optical nanofibers of subwavelength diameter as interfaces for probing and manipulating laser-cooled rubidium atoms. In particular, we concentrate on photon counts emitted through the nanofiber.

JWA29Improvements in Photon Number-Resolving Detection, Kevin Zielnicki, Radhika Rangarajan, Paul G. Kwiat; Univ. of Illinois, USA. Visible light photon counters (VLPCs) enable efficient single-photon detection with photon number-resolving capability. In our system, we observe up to 5 simultaneous photons, with a detector signal pulse height distribution that matches theoretical predictions.

CLEO 14. Optical Metrology

JWA30Er-Doped Fiber Comb with Enhanced fceo S/N Ratio Using Tm:Ho-Doped Fiber, Yunseok Kim, Young-Jin Kim, Seungman Kim, Seung-Woo Kim; KAIST, Republic of Korea. The Tm:Ho-doped fiber improves the frequency stabilization of the Er-doped fiber comb by increasing the S/N ratio of the detected fceo signal by 10 dB.

JWA31Determining Carrier-Envelope Offset Frequen-cies of Passively Synchronized Mode-Locked Yb-Fiber and Er-Fiber Lasers, Wei-Wei Hsiang1, Chia-Hao Chang1, Chien-Po Cheng1, Kung-Tung Wu1, Jin-Long Peng2; 1Dept. of Physics, Fu Jen Catholic Univ., Taiwan, 2Ctr. for Measurement Standards, Industrial Technology Res. Inst., Taiwan. Simultaneous determination of both carrier-enve-lope-offset frequencies of passively synchronized mode-locked Yb-fiber and Er-fiber lasers has been demonstrated by measuring the heterodyne beats between the Yb-fiber laser and the self-referenced Er-fiber laser combs around 1050 nm.

JWA32Digital In-Line Holography with the Iterative Shadowgraphic Method, Stefano Minardi1, Falk Eilenberger1, Dimitris Pliakis2, Thomas Pertsch1; 1Friedrich-Schiller-Univ. Jena, Germany, 2Dept. of Electronics, Technological Educational Inst. of Crete, Greece. A recently derived iterative scheme for phase revival based on shadowgraphy is tested on experimental data. We show that the algorithm can reconstruct the phase profile accurately, thus enabling in-line digital holography applications.



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JWA33Optical Frequency Stability Measurement Based on an Etalon Reference, Ibrahim T. Ozdur, Mohammad U. Piracha, Mehmetcan Akbulut, Nazanin Hoghooghi, Dimitrios Mandridis, Peter J. Delfyett; CREOL, College of Optics and Photonics, Univ. of Central Florida, USA. An optical frequency stability measurement setup based on a Fabry-Perot Etalon reference is presented that results in measurements with ~1.4 kHz optical frequency resolution at update rates of 90 Hz.

JWA34Carrier to Envelope Offset Coupling via Mutiple Quantum Wells, Xuan Luo; Ctr. for High Technol-ogy Materials, Univ. of New Mexico, USA. Multiple Quantum Well saturable absorbers in a mode-locked laser induce a coupling of the differential carrier to envelope offset of two intracavity pulse trains, coupling that can be eliminated by design-ing a non-resonant periodic structure.

JWA35A Compound Mirror Incorporating a Fast-Light Medium for Gravitational Wave Detection with High Sensitivity, Broadband Signal Recycling, Selim M. Shahriar, Mary Salit; Northwestern Univ., USA. We describe the concept of a compound mirror for incorporating the white light cavity effect into the existing design for the Advanced LIGO interferometer for gravitational wave detection, resulting in much higher sensitivity and bandwidth.

JWA36Fiber-Based Frequency Comb with mHz Relative Linewidth Carrier-Envelope-Offset Frequency, Yunseok Kim, Seungman Kim, Young-Jin Kim, Seung-Woo Kim; KAIST, Republic of Korea. We constructed a low-noise fiber frequency comb that provides a narrowed linewidth of less than 1.9 mHz by suppressing the random phase noise caused by the nonlinear self-phase-modulation and amplified-spontaneous-emission inside the Er-doped fiber amplifier.

JWA37Time Resolved Experiments with Optical Sam-pling by Laser Cavity Tuning, Thomas Hochrein1, Rafal Wilk2, Ronald Holzwarth2, Norman Krumb-holz3, Martin Koch4; 1Sueddeutsches Kunststoff-Zentrum, Germany, 2Menlo Laser Systems GmbH, Germany, 3Inst. für Hochfrequenztechnik, Germany, 4Experimentelle Halbleiterphysik, Germany. We present a method for optical sampling by laser cavity tuning hereinafter called OSCAT. Time resolved experiments can be performed with one laser source and without any external moveable delay line.

JWA38An 87Sr Lattice Clock, Tetsuya Ido1,2, Atsushi Yamaguchi1, Nobuyasu Shiga1, Hiroshi Ishijima1, Shigeo Nagano1, Ying Li1, Mizuhiko Hosokawa1; 1NICT, Japan, 2CREST, JST, Japan. An optical lattice clock based on 87Sr 1S0-3P0 is developed. The width of the spectrum is currently limited to be 1kHz due to stray magnetic field. The ob-tained absolute frequency agreed with the CIPM recommendation.


JWA39 Isotope Selective Trapping of Singly and Doubly Charged Yb Ions in a Linear RF Trap, Jeremy R. Danielson1, Martin Schauer1, Saidur Rahaman1, Baozhou Sun1, Jiepeng Zhang1, Xinxin Zhao1, Justin Torgerson1, Li-Bang Wang2; 1Los Alamos Natl. Lab, USA, 2Natl. Tsing Hua Univ., Taiwan. We have successfully trapped singly and doubly ionized Ytterbium in a linear RF quadrupole trap. Ioniza-tion was accomplished with both photoionization and electron beam ionization. Co-trapping of Yb+ and Yb2+ was confirmed through electronic detection.

JWA40Fiber Laser Based Optical Frequency Comb System Using Fiber Chirped Pulse Amplifica-tion Technique, Norihiko Nishizawa, Kazuhiko Sumimura, Kazuyoshi Itoh; Osaka Univ., Japan. Er-doped fiber laser optical frequency comb using fiber chirped pulse amplification technique was developed and fceo was locked stably. The longitu-dinal modes in generated supercontiuum were also examined by direct observation of beat signals.

JWA41Characterization of Coupling of Pump Fluctua-tions to Laser in Mode-Locked Yb-Doped and Er-Doped Fiber Oscillators, I. Levent Buduno-glu, Kutan Gürel, F. Ömer Ilday; Bilkent Univ., Turkey. Transfer of fluctuations of pump power to laser power is characterized for mode-locked fiber oscillators. Contribution of pump noise to laser noise is estimated. Limits to pump modulation bandwidth for carrier-envelope-phase stabilization are briefly discussed.

JWA42Measurement of the FSR of a High Finesse Etalon with 2.5 kHz Accuracy Using a Narrow-Linewidth Frequency Swept Laser, Dimitrios Mandridis, Marcus Bagnell, Ibrahim Ozdur, Peter J. Delfyett; CREOL, College of Optics and Photonics, Univ. of Central Florida, USA. Measurement of the FSR of an etalon having finesse of 1000 with 7 digits of accuracy or 2.5 kHz. A modified PDH technique is used in conjunction with a frequency swept, narrow-linewidth CW laser.

JWA43A Design of a Long Monolithic Cavity without Unequal Restoring Forces, Michi Koide, Mizuhiko Hosokawa, Tetsuya Ido; NICT, Japan. A design of high-finesse optical cavity (L=30cm) with vibra-tion immunity is proposed. The cavity monolithi-cally includes supporting parts and a base plate, avoiding unequal restoring forces to predict the response against horizontal vibrations.

JWA44Long-Term Repetition-Frequency Stabilization of All-Normal-Dispersion Yb-Doped Fiber Laser to the Cesium Standard, Coşkun Ülgüdür1, F. Ömer Ilday1, Ramiz Hamid2; 1Bilkent Univ., Turkey, 2TÜBİTAK, Ulusal Metroloji Enstitüsü, Turkey. Repetition-frequency stabilization of a Yb-doped fiber laser to the Cesium standard is reported. Laser amplitude and phase noise is characterized. Performance is limited to 2x10-14 at 100000 averaging time by intrinsic stability of the Cs-standard.

JWA45Temperature Response of ULE Fabry-Perot Cav-ities, Richard W. Fox; NIST, USA. Low expansion glass cavities with optically contacted mirrors can exhibit structural distortions at the mirrors which may shift the temperature at which dv/dT=0. An update on experiments to confirm finite element modeling analysis is presented.

JWA46Thickness and Refractive Index Measurement of a Wafer Based on the Optical Comb, Jonghan Jin; Korea Res. Inst. of Standards and Science, Republic of Korea. We suggested and demonstrated a novel method that can determine the thickness and re-fractive index of a wafer at the same time in a single measurement by using the optical comb.

JWA47Generation of Highly Stable Microwave Signals Based on Regenerative Fiber Mode Locking Laser , Paolo Ghelfi1, Giovanni Serafino2, Fabrizio Berizzi3,4, Antonella Bogoni1; 1Natl. Lab of Photonic Networks, Consorzio Nazionale Interuniversitario per le Telecomunicazioni, Italy, 2Scuola Superiore Sant’Anna, Italy, 3Univ. of Pisa, Italy, 4RaSS Ctr. - CNIT, Italy. Microwave signal generation based on regenerative fiber mode-locked laser is proposed. The excellent stability proved by noise performance at X-band is guaranteed at ultra-high frequencies (above W band) where electronic generators strongly degrade.

CLEO 13. Active Optical Sensing

JWA48Development of a High Sensitivity Faraday Rotation Spectrometer for Nitric Oxide Moni-toring, Yin Wang1, Stephen So1, Evan Jeng1, An-toine Muller2, Gerard Wysocki1; 1Princeton Univ., USA, 2Alpes Lasers, Switzerland. Detailed noise analysis and system optimization of a DFB-QCL based Faraday rotation spectroscopic system for Nitric Oxide sensing is reported. New strategies for improvements of the ultimate sensitivity will be discussed.

JWA49Highly Sensitive Strain and Bending Sensor Based on a Fiber Mach-Zehnder Interferometer in Photonic Crystal Fiber, Woojin Shin1, Y.L Lee1, B.A. Yu1, Y.C. Noh1, T.J. Ahn2; 1Advanced Photonics Res. Inst., Gwangju Inst. of Science and Technology, Republic of Korea, 2Chosun Univ., Republic of Korea. We propose highly sensitive strain and bending sensor with very low temperature sensitivity based on in line Mach-Zehnder Interferometer in solid core large mode area photonic crystal fiber and experimentally investigated its novel characteristics.

JWA50Multipoint Mesh Sensing System with Self-Heal-ing Functionality, Chung-Yu Wu1, Jhih-Heng Yan1, Peng-Chun Peng2, Kai-Ming Feng1; 1Natl. Tsing Hua Univ., Taiwan, 2Natl. Taipei Univ. of Technology, Taiwan. A self-healing multipoint mesh sensing system is proposed by arranging the wavelengths of FBG sensors corresponding to the FSR of an AWG with three 2x2 optical switches in remote nodes to construct the healing links.

JWA51Thermochromic Polymer Opals, Jason Sussman1, David Snoswell1, Andreas Kontogeorgos1, Jeremy J. Baumberg1, Peter Spahn2; 1Univ. of Cambridge, UK, 2Deutsches Kunststoff-Inst., Germany. Highly unusual thermochromic properties of large-scale shear-ordered photonic crystals are demonstrated. A simple theoretical model of the temperature dependence of this resonant Bragg scattering based structural colour is developed.

JWA52Resonator Micro-Optic Gyroscope Based on the Double Phase Modulation Technique, Hui Mao, Huilian Ma, Zhonghe Jin; Zhejiang Univ., China. Double phase modulation technique is presented to relax the accuracy of the modulation index. A bias stability of 3.14×10-3 rad/s is demonstrated in a resonator micro-optic gyro with the silica waveguide ring length of 7.9cm.

JWA53Refractive Index Sensing Using Slow Light in Photonic Crystal Waveguides, Murtaza Askari, Sivasubramaniam Yegnanarayanan, Ali Adibi; Georgia Tech, USA. We present a compact integrated refractive index sensor using slow light in PCWs. The PCWs used in a Mach-Zahnder interferometer configuration and operated close to mode-gap edge result in a highly compact and sensitive device.

JWA54Spatial Resolution Limitation by Rayleigh Scattering-Induced Noise in Brillouin Optical Correlation-Domain Reflectometry, Yosuke Mizuno, Weiwen Zou, Zuyuan He, Kazuo Hotate; Univ. of Tokyo, Japan. We experimentally show that the modulation amplitude of laser frequency determining the spatial resolution of BOCDR can exceed half of the Brillouin frequency shift, which was the conventional limitation due to the Rayleigh scattering-induced noise.

JWA55Distributed Bragg Reflector Er-Doped Fiber Laser Hydrophone, Tuan Guo, Weisheng Liu, Allan Chi-lun Wong, Hongjun Wang, Da Chen, Chao Lu, Hwa-Yaw Tam; Hong Kong Polytechnic Univ., Hong Kong. Dual-polarization distributed Bragg reflector fiber laser (26 mm length) in Er-doped fiber with beat-frequency of ~20 MHz (significantly lower than ~1 GHz reported earlier) that is capable of detecting 16 MHz ultrasound has been demonstrated.

JWA56Detection of First Order Phase Transitions Using Direct UV Written Integrated Optical Planar Bragg Gratings Intrinsically Defined Within a Silica Micro-Cantilever, Christopher Holmes, Lewis G. Carpenter, Helen L. Rogers, James C. Gates, Peter G. R. Smith; Optoelectronics Res. Ctr., Univ. of Southampton, UK. A phase transition sensor is demonstrated using direct UV written Bragg grat-ings intrinsically defined within a mechanically resonating silica micro-cantilever. Fabrication is uniquely achieved through a combination of micro-machining and direct UV writing.


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JWA57Fingerprinting Ovalbumin—Simulant of Protein Toxins in Extremely-Wide Frequency Range, Renbo Song1, Yujie J. Ding1, Ioulia B. Zotova2; 1Lehigh Univ., USA, 2ArkLight, USA. We have identified ten new absorption peaks in the unexplored spectral range of 3600-7000 wave numbers and two new peaks in 15-120 wave numbers from Ovalbumin being regarded as a simulant of protein toxins.

JWA58Long Distance FBG Sensor Interrogation Using 1.3 μm FDML Wavelength Swept Laser, Min Yong Jeon, Byoung Chang Lee; Chung Nam Natl. Univ., Republic of Korea. We report a high-speed long distance FBG sensor interrogation using 1.3μm FDML wavelength-swept laser. The static strain and dynamic strain response for long distance FBG interrogation system is achieved.

JWA59Cladding Modes Analysis of Photonics Crystal Fiber for Refractive Index Sensors Using Finite Element Method, Naeem Khurram1, Linh V. Nguyen1, Kamal Alameh2, Youngjoo Chung1; 1Gwangju Inst. of Science and Technology, Repub-lic of Korea, 2Edith Cowan Univ., Australia. We developed a Finite Element package to analyze cladding mode field extensions into the air-holes of photonics crystal fiber for refractive index sensing. Our analysis could determine the most sensitive cladding mode for liquid sensing.

JWA60A Trace Gas Sensor at ppb Sensitivity Based on Multiple Line Integration Spectroscopy Tech-niques, Gottipaty N. Rao, Andreas Karpf; Adelphi Univ., USA. We demonstrate that employing inte-grated absorption of multiple lines or summation of the absolute values of the wavelength modula-tion spectroscopy signals, sensitivities of ppb can be achieved for the detection of trace gases.

CLEO 10. Biophotonics and Optofluidics

JWA61An Integrated Optofluidic Bragg Grating Device to Measure the Dynamic Composition of a Fluid System, Richard M. Parker, James C. Gates, Martin C. Grossel, Peter G. R. Smith; Univ. of Southampton, UK. Strong transitional mixing effects were observed by a planar Bragg grating sensor within a microfluidic system. This property was used to develop an integrated optofluidic sensor for detection of the composition of mixed solvent systems.

JWA62Optofluidic in situ Fabrication of Magnetic Ac-tuators in Microfluidic Channels, Su Eun Chung, Jiyun Kim, Seungki Min, Nari Lily Kim, Sunghoon Kwon; Seoul Natl. Univ., Republic of Korea. We demonstrate in-situ fabrication of magnetic actuators using optofluidic maskless lithography (OFML). Photopatterning of magnetic structures in same place with actuation area reduces extra steps for transportation from the fabrication site to actuation site.

JWA63Integrated Microsphere Arrays as a Compact Focusing Tool for Biomedical and Photonics Applications, Arash Darafsheh, Matthew D. Kerr, Kenneth W. Allen, Vasily N. Astratov; Univ. of North Carolina at Charlotte, USA. It is shown that integration of microspheres inside microcapillaries or hollow waveguides allow the development of compact focusing tools for a variety of biomedical and photonics applications.

JWA64Statistical Hypothesis Testing for Super-Resolution Localization Imaging at High Speed, Fang Ma, Alberto Bilenca; Lehigh Univ., USA. We predict a 6-to-15-fold increase in the imaging speed of super-resolution photo-activated local-ization microscopy using a novel algorithm for estimation of the number of multiple molecules activated simultaneously within a diffraction-limited area.

JWA65Nonlinear Recovery of Diffused Images by Seed-ed Instability, Dmitry V. Dylov, Jason W. Fleischer; Princeton Univ., USA. We develop a method to filter and amplify diffused images by using spatial nonlinearity to seed instability. We observe the increase of image contrast and enhancement of signal resolution in noisy environments.

JWA66Integrated Arrayed Waveguide Grating Spec-trometer for On-Chip Optical Coherence Tomography, Imran Akca1, Nur Ismail1, Fei Sun1, Duc V. Nguyen2, Jeroen Kalkman2, Ton G. van Leeuwen1,2, Alfred Driessen1, Kerstin Worhoff1, Markus Pollnau1, Rene de Ridder1; 1Univ. of Twente, Netherlands, 2Univ. of Amsterdam, Netherlands. A silicon oxynitride based arrayed waveguide grating spectrometer was designed for on-chip spectral-domain optical coherence tomography systems. Transmission measurement results are promising for miniaturizing the current optical coherence tomography systems through integrated optics.

JWA67Comparison of Forward and Backward SHG Images Using Fourier Transform-Second-Har-monic Generation Imaging, Raghu Ambekar Ra-machandra Rao, Monal R. Mehta, Scott Leithem, Kimani C. Toussaint, Jr; Univ. of Illinois Urbana-Champaign, USA. We compare the forward and backward SHG images for porcine tendon, sclera, and ear cartilage using Fourier transform-second-harmonic generation microscopy. The preferred orientation and peaks in the magnitude spectrum are used as metrics for comparison.

JWA68Coherent Anti-Stokes Raman Scattering Microscopy Using a Single-Pass Picosecond Supercontinuum-Seeded Optical Parametric Amplifier, Chao-Yu Chung1, Yen-Yin Lin2, ShiWei Chu3, Kuo-Yu Wu1, Wan-Yu Tai1, Yao-Chang Lee1, Yeu-Kuang Hwu4, Yin-Yu Lee1; 1Natl. Synchrotron Radiation Res. Ctr., Hsinchu, Taiwan ROC, Taiwan, 2Inst. of Photonics Technologies, Dept. of Electrical Engineering, Natl. Tsinghua Univ., Taiwan, 3Dept. of Physics, Natl. Taiwan Univ., Taipei, Taiwan ROC, Taiwan, 4Inst. of Physics, Academia Sinica, Taipei, Taiwan ROC, Taiwan. We investigated a coherent anti-Stokes Raman scattering microscopy with a single-pass picosecond supercontinuum-seeded optical parametric amplifier (SCOPA). Our SCOPA system is substantially simpler because the pump and Stokes lasers are automatically overlapped.

JWA69Forward and 90-Degree Light Scattering Measurements in Optofluidic Flow Cytometer, Jessica M. Godin, Yu-Hwa Lo; Univ. of California at San Diego, USA. A microfluidic flow cytometer for three-parameter light scatter measurements is demonstrated to distinguish between 4 sizes of polystyrene beads from 5-15 μm. Light blocking and guiding elements are employed in this com-pact, integrated microfluidic chip.

JWA70Optical Manipulation of Microbeads in an Integrated Optofluidic Device, Hong CAI, An-drew W. O. Poon; Hong Kong Univ. of Science and Technology, Hong Kong. We demonstrate optical manipulation of 1-μm-sized polystyrene beads in a silicon-based integrated optofluidic device. The relative velocity of the optically driven microbeads is ~14.2 μm/s and ~3.5 μm/s using 0.7-μm and 0.5-μm-thick silicon nitride waveguides.

JWA71Hadamard Multiplexed Fluorescence Molecular Tomography: Theory and Numerical Studies, Ali Behrooz, Ali A. Eftekhar, Pouyan Mohajerani, Ali Adibi; Georgia Tech, USA. Inspired by Hadamard multiplexing technique, a method is proposed to improve noise robustness and minimize estima-tion error in fluorescence molecular tomography (FMT). Theoretical results are validated by nu-merical studies of 2-D simulated FMT data.

JWA72Ordered Fluidic Self-Assembly of 3-D Mi-croparticles Based on Gray-Scale Optofluidic Maskless Lithography, Sung-Eun Choi, Hosuk Lee, Wook Park, Sunghoon Kwon; Seoul Natl. Univ., Republic of Korea. We demonstrate ordered fluidic self-assembly of lithographically fabricated microparticles in microfluidic channels. Unique 3-D shapes of the microparticles are fabricated by gray-scale optofluidic maskless lithography. We show these structures enhance orderness of the monolayer crystal.



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JWA73Multi-Photon Ablation of Biological Samples with Custom-built Femtosecond Fiber Laser-microscope System, Seydi Yavas, Mutlu Erdogan, Kutan Gürel, Uygar Halis Tazebay, F. Ömer Ilday; Bilkent Univ., Turkey. A femtosecond laser-micro-scope system is custom-built for ablation of cells and tissue at 1030 nm. Fiber lasers offer important advantages for nanosurgery, including superior robustness, lower-cost and nearly complete control over pulse train pattern.

JWA74Fiber Bundle Fluorescence Endomicroscopy, Tsung-Han Tsai, Chao Zhou, James G. Fujimoto; MIT, USA. An improved design for fiber bundle fluorescence endomicroscopy is demonstrated. Scanned illumination and detection using coher-ent fiber bundles with 30,000 elements with 3 μm resolution enables high speed imaging with reduced pixel cross talk.

JWA75Double Negative Particles in Optical Tweezers, Leonardo A. Ambrosio, Hugo E. Hernández-Figueroa; Unicamp, Univ. of Campinas, Brazil. Preliminary results for gradient forces on optical tweezers, using double-negative (DNG) particles, are presented adopting full electromagnetic theory for focused Gaussian beams, revealing unusual and interesting behaviors that could be exploited in biomedical optics research.

JWA76Optothermal Manipulation of Colloidal Mi-croparticles, Yangyang Liu, Andrew W. Poon; Hong Kong Univ. of Science and Technology, Hong Kong. We demonstrated trapping of 6-µm polystyrene microparticles over a 253-µm range using a trapping power of ~ 7 mW at 1550 nm. The observed particle levitation and segregation offer a long-range energy-efficient manipulation mechanism.

JWA77Internal Quadratic Stark Effect Results in Color Hue Variations in Fluorescent Proteins with the Same Chromophore Structure, Mikhail Drobi-zhev, Shane Tillo, Nikolay S. Makarov, Aleksander Rebane, Thomas E. Hughes; Montana State Univ., USA. Genetically-encoded fluorescent proteins are widely used for bio-imaging. We employ two-photon absorption spectroscopy to show that their different hues can be explained by quadratic Stark effect due to variations of electric field within the protein.

JWA78Evaluation of the Electromagnetic Hazard of Intense THz Pulses on Neural Cells, Marco Pec-cianti1,2, Mohamad Seyed Sadr3, Carmen Sabau3, Gargi Sharma1, Francois Blanchard1, Luca Razzari1, Deborah Maret3, Emad Seyed Sadr3, Jad Alshami3, Vincent Siu3, Gabriella Gobbi4, Tsuneyuki Ozaki1, Rolando Del Maestro3, Roberto Morandotti1; 1INRS Énergie, Matériaux et Télécommunications, Canada, 2Res. Ctr. SOFT INFM-CNR, Italy, 3Brain Tumour Res. Ctr., Montréal Neurological Inst., Canada, 4Neurobiological Psychiatry Unit, McGill Univ., Canada. We present an experimental study on the potential electromagnetic hazard of High field THz broadband pulse on healthy and degen-erated neural tissue toward in vivo application of reflective THz time domain spectroscopy.

JWA • Joint CLEO/QELS Poster Session II—ContinuedJWA79Optomechanical Protein Switch, Jessica P. Mondia, Stephanie P. Yuen, Tom Dabrowski, Mark Cronin-Golomb, David L. Kaplan, Fiorenzo G. Omenetto; Tufts Univ., USA. We demonstrate pho-tomechanical actuation by measuring the variation of the diffracted orders in a free-standing nanopat-terned diazonium-modified silk fibroin film by modulating a blue excitation light source.

JWA80Unambiguous Probe of Surface Chirality Based on Focused Circularly-Polarized Light, Mikko J. Huttunen, Matti Virkki, Miro Erkintalo, Martti Kauranen, Elina Vuorimaa, Alexander Efimov, Helge Lemmetyinen; Tampere Univ. of Technol-ogy, Finland. We propose a new probe of surface chirality based on second-harmonic generation and focused circularly-polarized light. We show experimentally that the technique is sensitive only to chirality but not to anisotropy of the sample.

JWA81Dynamic Monitoring of the Heart Beating Be-haviors of Drosophila with Optical Coherence Tomography, Meng-Tsan Tsai1, Cheng-Kuang Lee2, Kai-Min Yang2, Ting-Ta Chi2, C. C. Yang2, June-Tsai Wu2, Lian-Yu Lin2; 1Chang Gung Univ., Taiwan, 2Natl. Taiwan Univ., Taiwan. The dynamic behaviors of heart beating of drosophilae, includ-ing abnormal drosophilae of mutant genes and high-temperature culture, and normal drosophilae with different fixing techniques for observation, are monitored with a swept-source optical coher-ence tomography system.

JWA82pH/Ion Sensitive Nanoparticles with Optical Tweezers, Mark J. Kendrick1, Daniel Gruss1, David H. McIntyre1, Oksana Ostroverkhova1, Valeriya Bychkova1, Alexey Shvarev1, Natalia Pylypiuk1, Myra Koesdjojo1, Vincent T. Remcho1, Shalini Prasad2; 1Oregon State Univ., USA, 2Arizona State Univ., USA. We present fluorescence-based pH/ion nanosensors, positioned and manipulated using holographic optical tweezers, with simultaneous fluorescence read-out, within a microfluidic device and within a biological cell.

JWA83High Resolution Measurement of Sodium Fluorescein Distribution in Doped Live Cor-neal Tissue, Liping Cui1, Krystel Huxlin2, Lana Nagy2, Margaret DeMagistris2, Lisen Xu1, Wayne Knox1; 1Inst. of Optics, Univ. of Rochester, USA, 2Univ. of Rochester Eye Inst., USA. Two-photon fluorescence was used for the first time to measure sodium fluorescein distribution in live corneal tissue. The diffusion depth was determined to be 350 µm under study conditions with 11µm axial resolution.

JWA84Experimental Investigation of Waveguide Sensor Based on Cascaded-Microring Resonators with Vernier Effect, Lei Jin, Mingyu Li, Jian-Jun He; Zhejiang Univ., China. An optical sensor based on two cascaded microring resonators is fabricated in silicon-on-insulator waveguide. A Q-factor of 2×104 is measured and the increase of refractive index sensitivity by using Vernier effect is inves-tigated experimentally.

JWA85Image Contrast Enhancement of Optical Coher-ence Tomography with Au Nanorod-Induced Localized Surface Plasmon Resonance, Cheng-Kuang Lee1, Ting-Ta Chi1, Kun-Che Kao1, Chung-Yuan Mou1, Kai-Min Yang1, Meng-Tsan Tsai2, C. C. Yang1; 1Natl. Taiwan Univ., Taiwan, 2Chang Gung Univ., Taiwan. Image contrast enhancement of optical coherence tomography is demonstrated by diffusing Au nanorods into pig adipose for gener-ating localized surface plasmon (LSP) resonance, which is confirmed by comparing with the case of no LSP excitation.

JWA86Optical Coherence Tomography Imaging of Stenotic Aortic Valve Samples, Kátia C. Rodri-gues1, Claudia C. B. Mota1, Jamil Saade1, Cid B. Araújo1, Renato A. Zangaro2, Newton S. da Silva3, Renato E. Araújo1, Anderson S. L. Gomes1; 1Univ. Federal de Pernambuco, Brazil, 2Univ. Camilo Castelo Branco, Brazil, 3Univ. do Vale do Paraíba, Brazil. Aortic valve samples, classified into normal, mild, moderate and severe fibrous calcific tissue based on Raman Spectroscopy, were analyzed with Optical Coherence Tomography. Results point OCT as a powerful diagnostic tool for aortic valve stenosis.

CLEO 06. Optical Materials, Fabrication and Characterization

JWA87Novel Method for Simulating Refractive Index Distributions of EO Materials with Electrostric-tive Distortions, Tadayuki Imai, Shogo Yagi; Nippon Telegraph and Telephone Corp., Japan. We report a novel method for simulating distributed refractive index modulations for materials with the second-order electro-optic effect. The theory assimilates calculations of strains caused by the electrostrictive effect.

JWA88Vis-IR Optical Switching/ Modulation Based on the Electrically- Activated Phase Transition of VO2 Thin Films, Aurelian Crunteanu1, Marc Fabert1, Julien Givernaud1, Vincent Kermene1, Agnes Desfarges-Berthelemot1, Jean-Christophe Orlianges2, Corinne Champeaux2, Alain Catheri-not2; 1XLIM UMR 6172, Univ. de Limoges/ CNRS, France, 2SPCTS UMR 6638, Univ. de Limoges/ CNRS, France. We report on characterization of novel optical switches based on phase transition VO2 films. The electrically-induced VO2 phase transition leads to radical changes in material’s optical properties, which may be implemented in switching/ modulation functions.

JWA89Optical and Structural Properties of Zirconium Doped Lithium Niobate Crystals, Paolo Min-zioni1, Giovanni Nava1, Jacopo Parravicini1, Ilaria Cristiani1, Vittorio Degiorgio1, Nicola Argiolas2, Marco Bazzan2, Maria V. Ciampolillo2, Cinzia Sada2, Luca Saoner2, Anna M. Zaltron2; 1CNISM and Univ. of Pavia, Italy, 2CNISM and Univ. of Padova, Italy. We present a careful investigation of the optical properties of Zr-doped lithium-niobate crystals. We also investigate in detail the threshold concentration for Zr-doping, by means of three different optical measurement techniques.

JWA90Characterization of Saturable Absorption of E11 and E22 Transitions of Carbon Nanotubes, J. C. Travers1, J. Morgenweg1, E. D. Obraztsova2, A. S. Lobach3, A. I. Chernov2, E. J. R. Kelleher1, S. V. Popov1, J. R. Taylor1; 1Femtosecond Optics Group, Physics Dept., Imperial College London, UK, 2A.M. Prokhorov General Physics Inst., Russian Federation, 3Inst. of Problems of Chem. Physics, Russian Acad. of Sciences, Russian Federation. We characterize the saturable absorption properties of the E11 and E22 transitions of the same highly-purified film of single-wall carbon-nanotubes, and compare the results in terms of modulation-depth, saturation-intensity and mode-locked fiber laser performance.

JWA91High Nonlinearity and High Transmittance Optical Bi2O3-B2O3-TeO2 Glass, Tomoharu Hasegawa; Asahi Glass Co., Ltd., Japan. We devel-oped a novel Bi2O3-B2O3-TeO2 glass system. This glass shows excellent high transmittance even near the absorption edge ~400 nm, nevertheless its high refractive index and high optical nonlinearity.

JWA92Wafer-Scale Monolithic Integration of Al2O3:Er3+ Amplifiers with Si Waveguides, Laura Agazzi1, Jonathan D. B. Bradley1, Gunther Roelkens2, Roel Baets2, Feridun Ay1, Kerstin Worhoff1, Markus Poll-nau1; 1IOMS Group, Univ. of Twente, Netherlands, 2Photonics Res. Group, Gent Univ., Belgium. Co-sputtering and structuring active erbium-doped aluminum oxide waveguides directly on top of processed SOI passive waveguides provides cou-pling losses of 2.5 dB between active and passive waveguides and a signal enhancement of 7.2 dB.

JWA93GaAs Deep-Center Stimulated-Emission at 1.5μm, Janet L. Pan; Yale Univ., USA. Room-temperature stimulated-emission, optical gains larger than known significant losses, and single-pass laser action from GaAs deep-centers are demonstrated at low electrical injection in cw mode at 1.3-1.5μm. Fast hole capture maintains the population inversion.


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JWA • Joint CLEO/QELS Poster Session II—ContinuedJWA94Optical Spectroscopy on Bi Containing Semi-conductors, Alexey Chernikov1, Sangam Chat-terjee1, Martin Koch1, Christina Bückers1, Stephan W. Koch1, Sebastian Imhof2, Angela Thränhardt2, Xianfeng Lu3, Shane R. Johnson3, Dan A. Beaton4, Thomas Tiedje4; 1Philipps-Univ. Marburg, Germany, 2Technische Univ. Chemnitz, Germany, 3Arizona State Univ., USA, 4Univ. of British Columbia, Can-ada. The novel semiconductor material Ga(AsBi) is investigated by the time-resolved photolumines-cence as function of lattice temperature, excitation density, and excitation energy. Disorder and localization effects are found to strongly influence the spectra and the dynamics.

JWA95Spatially Resolved, Polarized Photolumines-cence from Wurtzite InGaAs/GaAs Nanon-eedles, Roger Chen, Linus C. Chuang, Thai Tran, Michael Moewe, Connie Chang-Hasnain; Univ. of California at Berkeley, USA. We spatially resolve photoluminescence from wurtzite InGaAs/GaAs core-shell nanoneedles and characterize their nonuniform quantum well emission. Polariza-tion measurements reveal anisotropy behavior that is reminiscent of GaN and other wurtzite materials.

JWA96 Characterization of Dynamic Nonlinear Absorption of Carbon Nanotube Saturable Absorber, Fengqiu Wang, Daniel Popa, Zhipei Sun, Tawfique Hasan, Felice Torrisi, Andrea C. Ferrari; Dept. of Engineering, Univ. of Cambridge, UK. Dynamic nonlinear absorption of composite-type single-wall carbon nanotube saturable absorbers is characterized using both femtosecond and pico-second pump pulses. Results are compared with numerical simulations based on two commonly used saturable absorber models.

JWA97Observation of ArF Laser Induced Structural Defects in Highly Transparent Synthetic Silica Glass, Madoka Ono1, Akio Koike1, Kei Iwata2, Masaaki Takata2; 1Asahi Glass Co., Japan, 2AGC Electronics Co. Ltd., Japan. Sensitive in situ mea-surement systems for differential absorption and photoluminescence were developed to evaluate E’ center, ODC(II), and NBOHC. The change of their concentrations by ArF irradiation were suc-cessfully observed in highly transparent synthetic silica glass.

JWA98Ytterbium Doped Nano-Crystalline Optical Fiber for Reduced Photodarkening, Seongwoo Yoo1, Mridu P. Kalita1, Alex J. Boyland1, andy Webb1, Rob J. Standish1, Jayanta K. Sahu1, Mukul C. Paul2, S. Das2, S. K. Bhadra2, M. Pal2; 1Optoelectronic Res. Ctr., Univ. of Southampton, UK, 2Central Glass and Ceramic Res. Inst., India. We report suppression of photodarkening in Yb-doped nano-crystalline fibers in silica host. The photodarkening induced loss reduced by 20 times compared to Yb-doped aluminosilicate fibers. The laser efficiency of the nano-crystalline fiber was 79%.

JWA99Characterization of CsLiB6O10 Crystals Grown in Dry Atmosphere, Masashi Yoshimura1,2, Yohei Shimizu1,2, Takahiro Kawamura1,2, Kazuto Matsuki3, Susumu Iida2,3, Shinichi Imai2,3, Yushi Kaneda1,2,4, Junji Hirohashi2,5, Akio Miyamoto2,5, Yasunori Furukawa2,5, Yasuo Kitaoka1,2, Yusuke Mori1,2, Takatomo Sasaki1,2; 1Osaka Univ., Japan, 2JST-CREST, Japan, 3AMiT, Japan, 4Univ. of Arizona, USA, 5Oxide, Japan. We attempted the growth of CsLiB6O10 in dry atmosphere. Devices fabricated from dry-grown crystal had demon-strated 1 week of continuous operation without shifting the crystal at the output power of 100 mW at 199 nm.

JWA100Nondestructive Quality Evaluation of Peri-odically Poled Lithium Niobate Crystals by Diffraction-Noise Measurement, Myoungsik Cha, Hwan Hong Lim, Krishnamoorthy Pandiyan, Yeon Sook Kang, Byoung Joo Kim; Pusan Natl. Univ., Republic of Korea. We derived an expression for the noise between the diffraction orders from a random grating. The result was applied to analyze the statistical duty-cycle error in PPLN, providing an efficient means for poling quality evaluation.

JWA101Pr Doped Li-6 Glass Scintillator for Inertial Confinement Fusion Neutron Diagnostics, Yasunobu Arikawa1, Kouhei Yamanoi1, Tomoharu Nakazato1, Elmer Surat Estacio1, Toshihiko Shimi-zu1, Nobuhiko Sarukura1, Mitsuo Nakai1, Takayoshi Norimatsu1, Youichirou Hironaka1, Hiroshi Azechi1, Takahiro Murata2, Shigeru Fujino3, Hideki Yoshida4, Kei Kamada5, Yoshiyuki Usuki5, Toshihisa Suyama6, Akira Yoshikawa7, Nakahiro Satoh8, Hirohumi Kan8; 1Inst. of Laser Engneering, Osaka Univ., Japan, 2Tokai Univ., Japan, 3Kyusyu Univ., Japan, 4Ceramic Res. Ctr. of Nagasaki, Japan, 5Furukawa Co. ltd., Japan, 6Tokuyama Co. Ltd., Japan, 7Tohoku Univ., Japan, 8Hamamatsu Photonics K. K., Japan. Experimental results are presented on the proper-ties of a custom-designed fast-response lithium-6 glass scintillator for inertial confinement fusion diagnostics. This newly developed scintillator promises as an indispensable tool in the realization of scattered neutron diagnostics.

JWA102Switcheable Strong-Coupling Microcavities of Inorganic-Organic Perovskite Natural Quantum Wells, Gaddam Vijaya Prakash1, K. Pradeesh1, Jer-emy J. Baumberg2; 1Indian Inst. of Technology Delhi, India, 2Univ. of Cambridge, UK. Room-temperature strong-coupling has been observed with large Rabi splitting of upto 202meV when layered inorganic-organic multiple quantum wells (IO-MQWs), are embedded in low-Q microcavities. Incorporating exciton-switching hybrid further allows active control of the strong-coupling parameters.

JWA103Two-Photon Absorption in Single Crystals of Cyanine-Like Dye, Honghua Hu1, Andriy Gerasov2, Lazaro Padilha1, Olga Przhonska1,3, Scott Webster1, Mykola Shandura2, Yuriy Kovtun2, Artem Masunov4,5,6, David Hagan1,6, Eric Van Stryland1,6; 1CREOL and FPCE, College of Optics and Photon-ics, Univ. of Central Florida, USA, 2Inst. of Organic Chemistry, Natl. Acad. of Sciences, Ukraine, 3Inst. of Physics, Natl. Acad. of Sciences, Ukraine, 4Nanosci-ence Technology Ctr., Univ. of Central Florida, USA, 5Dept. of Chemistry, Univ. of Central Florida, USA, 6Dept. of Physics, Univ. of Central Florida, USA. We report the two-photon absorption spectrum of single crystals of an asymmetric cyanine-like dye in comparison to its spectrum in solution. The 2PA peak magnitude is comparable to bulk semiconductors of similar absorption edge.

JWA104Absence of Quantized Energy-States Local Diffusion in Semiconductor Quantum-Dash Structures, Chee-Loon Tan1, Chee Keong Tan2, Hery Susanto Djie3, Boon Siew Ooi1,4; 1Lehigh Univ., USA, 2Univ. of Sheffield, UK, 3JDS Uniphase Corp., USA, 4King Abdullah Univ. of Science and Technology, Saudi Arabia. We present an analysis of InAs/InAlGaAs/InP quantum-dash structures utilizing different degrees of postgrowth-lattice-disordering. The observation of digital transitions among quantized states discards the origins of multiple excited states from a single group of dash ensembles.

JWA105Optical Reflection and Transmission Properties from a Graphene Monolayer to Graphite, Helgi S. Skulason, Peter E. Gaskell, Thomas Szkopek; McGill Univ., Canada. Optical reflection, transmission and AFM measurements of exfoliated graphitic films on glass from graphene monolayers to 700 layers are reported. A simple model based on pi-pi* and sigma-sigma* transitions account for the observed behavior.

JWA106Reduction of Thermal Dephasing by Tight Elliptical Focusing Perpendicular to Walk-off Plane Leading to Improved Fourth Harmonic Generation in β-BaB2O4, Masakuni Takahashi1, Akira Osada1, Alex Dergachev2, Peter F. Moulton2, Marilou Cadatal-Raduban3, Toshihiko Shimizu3, Nobuhiko Sarukura3; 1Central Res. Inst., Mitsubishi Materials Corp., Japan, 2Q-Peak Inc., USA, 3Inst. of Laser Engineering Osaka Univ., Japan. Thermal de-phasing from two-step absorption-induced linear absorption is reduced by minimizing second- and fourth-harmonic beam overlap through uniaxial focusing parallel to the walk-off plane, leading to high-repetition rate, multi-watt ultraviolet generation in BBO.



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CLEO 05. Terahertz Technologies and Applications

JWA107Measurement of Terahertz Pulses Using Electronically Controlled Optical Sampling (ECOPS), Jingbo Liu, Marx K. Mbonye, Rajind Mendis, Daniel M. Mittleman; Rice Univ., USA. We demonstrate generation and detection of single-cycle terahertz pulses using Electroni-cally Controlled Optical Sampling (ECOPS). This technique is similar to asynchronous optical sampling (ASOPS), but is better suited for lower repetition-rate lasers.

JWA108Terahertz Plasmon-Induced Dipole Emis-sion from a Schottky Barrier, Cameron J. E. Straatsma, Corey A. Baron, Mehmet Egilmez, Kim H. Chow, Jan Jung, Abdulhakem Y. Elezzabi; Univ. of Alberta, Canada. We report on terahertz modulation of a Schottky interface. An amplitude increase of ~12% is observed for terahertz pulses transmitted through dense ensembles of metallic microparticles containing a surface structure of CuxO/Au.

JWA109Paper Withdrawn.

JWA110Electrically Controlling Beam Pattern of THz Quantum Cascade Lasers, Saeed Fathololoumi1,2, Emmanuel Dupont1, Seyed Ghasem Razavipour2, Sylvain R. Laframboise1, Zbigniew R. Wasilewski1, Dayan Ban2, H. C. Liu1; 1 Inst. for Microstructural Sciences, Natl. Res. Council Canada, Canada, 2 Dept. of Electrical and Computer Engineering, Univ. of Waterloo, Canada. An electrically controlled beam pattern technique for semi-insulating surface plasmon terahertz quantum cascade is presented. The near and far field measurements confirm that the lasing THz beam is roated by 25°, under dufferent current injections.

JWA • Joint CLEO/QELS Poster Session II—ContinuedJWA111Towards High-Power Terahertz Emitters Using Large Aperture ZnSe Photoconductive An-tenna, Savier Ropagnol1, Roberto Morandotti1, Tsuneyuki Ozaki1, Matt Reid2; 1INRS, Canada, 2Univ. of Nothern British Columbia, Canada. We study the generation of Terahertz (THz) radia-tion from ZnSe large aperture photoconductive antenna (LAPCA), with a goal to produce an intense THz source.

JWA112Terahertz Emission from Coherent Phonon in Lithium Ternary Chalcopyrite Crystals Il-luminated by Femtosecond Laser Pulses, Kei Takeya1, Yoshiaki Takemoto1, Iwao Kawayama1, Hironaru Murakami1, Takeshi Matsukawa2, Yoshinori Takahashi2, Masashi Yoshimura2, Ya-suo Kitaoka2, Yusuke Mori2, Takatomo Sasaki2, Masayoshi Tonouchi1; 1Inst. of Laser Engineering, Osaka Univ., Japan, 2Graduate School of Engineer-ing, Osaka Univ., Japan. We have investigated the THz emission from lithium ternary chalcopyrite crystals illuminated femtosecond pump laser pulses. THz emission from the coherent phonon in LiInSe2 and LiGaSe2 are observed at 2.87 and 3.45 THz respectively.

JWA113Efficient Method for Estimating Random Errors in Optical Constants Measured with THz-TDS, Norihisa Hiromoto1, Saroj Raman Tripathi1, Makoto Aoki1, Kento Mochizuki1, Toshiaki Asahi2, Iwao Hosako3; 1Shizuoka Univ., Japan, 2Nippon Mining and Metals Co. Ltd., Japan, 3NICT, Japan. We propose practical models for standard devia-tions in intensity and phase spectra of electric field measured with THz-TDS, which makes possible to estimate random errors in the optical constants from single measurement of a sample.

JWA114Angle-Resolved THz Time Domain Reflection Spectroscopy of Rough Surfaces, Christoph D. Robiné1, Christian Wiegand2, Karola Rühle1, Frank Ellrich1, Tristan Weinland2, René Beigang3; 1Fraun-hofer IPM, Germany, 2TU Kaiserlautern, Germany, 3Fraunhofer IPM, TU Kaiserslautern and Res. Ctr. OPTIMAS, Germany. The use of a fiber-coupled terahertz TDS system offers new possibilities for angle-resolved reflection spectroscopy. We put the focus especially on angle-resolved scattering from roughened surfaces of both dielectric and metallic surfaces.

JWA115Model-Based THz Imaging for 2-D Reflection-Mode Geometry, Malakeh A. Musheinesh, Charles J. Divin, Jeffrey A. Fessler, Theodore B. Norris; Univ. of Michigan, USA. We demonstrate 2-D reflection-mode THz imaging with model-based reconstruction. A substantial improvement in the reconstruction of objects is obtained via the model-based algorithm compared to the time-reversal algorithm.

JWA116Imaging via Terahertz Plasmons, Pouya Maraghechi, Cameron J. E. Straatsma, Abdul-hakem Y. Elezzabi; Ultrafast Optics and Nano-photonics Lab, Dept. of Electrical and Computer Engineering, Univ. of Alberta, Canada. Terahertz plasmonics application in imaging dielectrics embedded in metal-filled media is presented. Signatures of the objects were observed by ex-ploiting the time domain information and the quality of acquired images was enhanced using image processing.

JWA117Loss and Spectral Measurements of Porous and Non-Porous Subwavelength THz Fibers, Alex-andre Dupuis, Anna Mazhorova, Frederic Deseve-davy, Maksim Skorobogatiy; École Polytechnique de Montréal, Canada. We present experimental verification of the transmission spectra and low propagation loss (α≤0.02cm-1) of porous and non-porous subwavelength Thz fibers. Porosity creates broader single-mode transmission peaks shifted to higher frequencies.

JWA118Investigation on Mode Coupling and Bending Loss Characteristics of Terahertz Air-core Pipe Waveguides, Jen-Tang Lu1, Chih-Hsien Lai1, Yu-Ru Huang1, Yu-Chun Hsueh1, Yuh-Jing Huang2, Hung-Chun Chang1, Chi-Kuang Sun1,3; 1Graduate Inst. of Photonics and Optoelectronics, Dept. of Electrical Engineering, Natl. Taiwan Univ., Taiwan, 2Inst. of Astronomy and Astrophysics, Academia Sinica, Taiwan, 3Res. Ctr. for Applied Sciences, Academia Sinica, Taiwan. We demonstrate the magnificent flexibility of the terahertz air-core pipe waveguides. By measuring waveguide attenuation spectra, we found that the pipe waveguides can be easily butt coupled with high coupling efficiency and low bending loss.

JWA119Numerical Study of THz Propagation in Curved Parallel-Plate Waveguides via the Lowest-Order Transverse-Electric (TE1) Mode, Marx K. Mbonye, Rajind Mendis, Daniel M. Mittleman; Rice Univ., USA. We numerically model the TE1-mode propagation of terahertz radiation inside a parallel-plate waveguide with curved plates. We show that a slight curvature can result in better mode confinement, without sacrificing its favor-able dispersive properties.

JWA120Terahertz Anti-Resonant Reflecting Hollow Waveguide Sensor, Borwen You1, Hao-Zai Chen1, Ja-Yu Lu1, Jia-Hong Liou2, Chin-Ping Yu2, Tze-An Liu3, Jin-Long Peng3; 1Inst. of Electro-Optical Sci-ence and Engineering, Natl. Cheng Kung Univ., Taiwan, 2Dept. of Photonics, Natl. Sun Yat-Sen Univ., Taiwan, 3Ctr. for Measurement Standards, Industrial Technology Res. Inst., Taiwan. A hollow-core anti-resonant reflecting terahertz waveguide is first demonstrated for refractive index sensing. Various dangerous vapors and micro-molecular-layer with 1%-concentration variation (corresponds to 0.01-index-variation) have been successfully identified. The sensitivity could reach up to 7.17×105nm/RIU.

JWA121Parametric Investigation of Isotropic Fishnet Metamaterials in Terahertz Regime, Zhongxiang Zhang, Kam Tai Chan; Chinese Univ. of Hong Kong, Hong Kong. The magnetic and surface plasmon resonances in isotropic fishnet metamaterials with left-handed band in terahertz regime were studied experimentally and by simulation. An LC-circuit model has been adapted to describe the device.

JWA122Planar Terahertz Metamaterial at Cryogenic Temperatures, Ranjan Singh1, Zhen Tian1,2, Jia-guang Han3, Carsten Rockstuhl4, Jianqiang Gu1,2, Weili Zhang1; 1Oklahoma State Univ., USA, 2Tianjin Univ., China, 3Natl. Univ. of Singapore, Singapore, 4Friedrich-Schiller-Univ. Jena, Germany. Optical properties of planar thin-film metamaterials were measured at room and liquid nitrogen tempera-tures using terahertz time-domain spectroscopy. The higher charge mobility at low temperatures is shown to be a promising path towards low-loss metamaterials.

12:00 p.m. – 2:30 p.m. Market Focus: Industrial Lasers, San Jose McEnery Convention Center, Exhibit Hall 2



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Room A1 Room A2 Room A3 Room A4

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1:30 p.m.–3:15 p.m.CWA • Carrier Envelope Phase Stabilization and Few Cycle Generation IGiulio Cerullo; Politecnico di Milano, Italy, Presider

1:30 p.m.–3:15 p.m.CWB • Photonic Crystals II: CavitiesMilos Popovic; Univ. of Colorado at Boulder, USA, Presider

1:30 p.m.–3:15 p.m.CWC • Fiber DesignLiang Dong; IMRA America Inc, USA, Presider

1:30 p.m.–3:15 p.m.CWD • Multiphoton MicroscopySiavash Yazdanfar; GE Global Res., USA, Presider

CWA1 • 1:30 p.m.Timing and Carrier-Envelope Phase Proper-ties of Optical Parametric Generation Driven by Femtosecond Pulses, Cristian Manzoni1,2, Giovanni Cirmi3, Daniele Brida2, Sandro De Sil-vestri2, Giulio Cerullo2; 1Max-Planck Res. Group for Structural Dynamics, Germany, 2Politecnico di Milano, Italy, 3MIT, USA. We investigate, both numerically and experimentally, the optical parametric generation (OPG) process driven by femtosecond pulses in second-order nonlinear crystals. We discuss on the absolute phase and time fluctuations of the OPG beam.

CWB1 • 1:30 p.m. Invited Photonic Crystal Nanobeam Cavities and Their Applications, Marko Loncar, P. B. Deotare, I. W. Frank, Y. Zhang, A. Conwill, M. Khan, M. W. McCutcheon, Q. Quan; Harvard Univ., USA. Wavelength-scale and high-Q photonic crystal nanobeam resonators, made in Si, III-Vs, and Si3N4, and their applications in reconfigurable pho-tonics, optoelectronics, biochemical sensing and quantum information processing are presented.

CWC1 • 1:30 p.m.Amplification of Femtosecond Pulses in Large Mode Area Photonic Bandgap Bragg Fiber, Dmitry A. Gaponov1, Sébastien Février1, Philippe Roy1, Marc Hanna2, Dimitris N. Papadopoulos2, Louis Daniault2, Frédéric Druon2, Patrick Georges2; 1Xlim, Univ. of Limoges, France, 2Lab Charles Fabry de l’Inst. d’Optique, France. We demonstrate am-plification of femtosecond pulses in large mode area singlemode Yb-doped photonic bandgap Bragg fibers. 260 femtosecond 5 microjoule pulses are obtained at 100 kHz repetition rate (1 W of average power).

CWD1 • 1:30 p.m.Subharmonic Synchronization of Two-Color Laser Pulses for Stimulated Raman Scattering Microscopy, Yasuyuki Ozeki1,2, Yuma Kitagawa1, Kazuhiko Sumimura1, Norihiko Nishizawa1, Wa-taru Umemura1, Makiko Ishii1, Shin’ichiro Ka-jiyama3, Kiichi Fukui1, Kazuyoshi Itoh1; 1Osaka Univ., Japan, 2JST, Japan, 3Kinki Univ., Japan. We successfully demonstrate low-jitter synchroniza-tion of a 38-MHz Yb-fiber oscillator to a 76-MHz Ti:sapphire oscillator with a two-photon detector and an intra-cavity electro-optic modulator for sensitive lock-in detection of stimulated Raman signal in biological microscopy.

CWA2 • 1:45 p.m.Sub Two-Cycle Pulse Compression at 1.8 µm with Bulk Material, Bruno E. Schmidt1,2, Mathieu Giguère1, Andrew D. Shiner2, Carlos Trallero-Herre-ro2, Éric Bisson1, David M. Villeneuve2, Jean-Claude Kieffer1, Paul B. Corkum2, François Légaré1; 1 Ctr. Énergie Matériaux et Télécommunications, INRS, Canada, 2Joint Lab for Atto-Second Science, Univ. of Ottawa, Natl. Res. Council, Canada. A simple scheme for generating 0.4 mJ 11.5 fs pulses at 1.8 µm is presented. OPA pulses were spectrally broadened in a hollow-core fiber and subsequently compressed by utilizing linear propagation through bulk material.

CWB2 • 2:00 p.m.Ultrahigh-Q Silicon-on-Insulator One Di-mensional Mode-Gap Nanocavity, Eiichi Kuramochi1,2, Takasumi Tanabe1,2, Hideaki Taniyama1,2, Kohei Kawasaki1, Masaya Notomi1,2; 1NTT Basic Res. Labs, Japan, 2CREST, JST, Japan. We reveal that a Si-wire-compatible SOI one-dimensional photonic crystal nanocavity can have a numerical Q as high as 108 with a modal volume of less than 1 (λ/n)3. An experimental Q of 360,000 is observed.

CWC2 • 1:45 p.m.All-Optical Signal Regeneration Using Pulse Trapping in Birefringent Fibers, Eiji Shiraki, Norihiko Nishizawa, Kazuyoshi Itoh; Osaka Univ., Japan. We demonstrated novel all-optical signal regeneration using pulse trapping. Amplification, re-timing, and pulse shaping were demonstrated in only a 140 m-long standard low birefringent fiber. A large gain of 20 dB was observed.

CWD2 • 1:45 p.m.Optimizing Spectral Resolution in Supercon-tinuum-Generation-Based Multimodal fs CARS Microscopy, Aaron D. Slepkov1, Andrew Ridsdale1, Adrian F. Pegoraro1,2, Guillaume Labroille3, Albert Stolow1,2; 1Natl. Res. Council Canada, Canada, 2Dept. of Physics, Queens Univ., Canada, 3Lab d’Optique et Biosciences, École Polytechnique, France. We utilize second-harmonic- and sum-frequency-generation at the objective focus to optimize spectral resolution in a single-fs-laser-source CARS microscope. Chirp-matching pro-vides spectral focusing with a <40 cm-1 resolution between 1200 cm-1-3800 cm-1.

CWA3 • 2:00 p.m.High Repetition Rate 5 GW Peak Power Fiber Laser Pumped Few-Cycle OPCPA with CEP Control, Enrico Seise1, Jan Rothhardt1, Steffen Hädrich1, Franz Tavella2, Arik Willner2, Stefan Düsterer2, T. Tschentscher3, Holger Schlarb2, Josef Feldhaus2, Jens Limpert1,4, Jörg Rossbach5, Andreas Tünnermann1,2; 1Friedrich-Schiller-Univ. Jena, Ger-many, 2Deutsches Elektronensynchrontron DESY, Germany, 3European XFEL GmbH, Germany, 4Helmholtz-Inst. Jena, Germany, 5Univ. Hamburg, Germany. We report on a 96-kHz repetition rate sub-10-fs, optical parametric amplifier with 6.7-W average power and >5 GW peak power. Further-more the oscillator is CEP-stabilized and the CEP of the amplified pulses is measured.

CWC3 • 2:00 p.m.Ultrashort Pulse Delivery in Hollow-Core Pho-tonic Bandgap Fiber at 540 nm, Wencai Huang1,2, Matthew G. Welch1, Peter J. Mosley1, Brian J. Mangan1, William J. Wadsworth1, Jonathan C. Knight1; 1Ctr. for Photonics and Photonic Materials, Univ. of Bath, UK, 2Xiamen Univ., China. We report the transmission and compression of ultrashort pulses with a wavelength of 540 nm in hollow-core photonic bandgap fiber. We have observed pulses as short as 115 fs after 1 m of fiber.

CWD3 • 2:00 p.m. Invited Label-Free Nonlinear Optical Imaging for Biology and Medicine, Sunney Xie; Harvard Univ., USA. Recent advances in stimulated Raman scattering microscopy and stimulated emission microscopy have allowed label-free imaging of living cells and organisms based on molecular spectroscopy with unprecedented sensitivity, offer-ing new possibilities for biology and medicine.

CWA4 • 2:15 p.m.Ultrabroadband Optical Parametric Chirped Pulse Amplifier System for Single-Cycle Wave-form Synthesis, Shu-Wei Huang1, Giovanni Cirmi1, Jeffrey Moses1, Kyung-Han Hong1, Andrew Benedick1, Li-Jin Chen1, Enbang Li2, Benjamin Eggleton2, Giulio Cerullo3, Franz X. Kärtner1; 1MIT, USA, 2Univ. of Sydney, Australia, 3Politecnico di Milano, Italy. We demonstrate synchronized few-cycle 800-nm and 2-µm pulse trains seeded from a single Ti:sapphire oscillator, able to generate scalable, high-energy pulses lasting less than a single electric-field cycle. Such pulses are attractive for high-field physics.

CWB3 • 2:15 p.m.Woodpile Photonic Crystal Nanocavity in GaAs, Lingling Tang, Tomoyuki Yoshie; Duke Univ., USA. High-precision three-dimensional woodpile photonic crystal nanocavities with 40 x 55 x 2.25 unit cells are fabricated in GaAs wafer for 1.55 µm wavelength with the two-directional etching method in a simple two-patterning process.

CWC4 • 2:15 p.m.Simplified Hollow-Core Photonic Crystal Fiber, Frédéric Gérôme, Raphael Jamier, Jean-Louis Auguste, Georges Humbert, Jean-Marc Blondy; Res. Inst. XLIM, Univ. de Limoges, France. A simplified design inspired from kagomé-lattice fiber reduced to one layer of air-holes was proposed demonstrat-ing the anti-resonant core guiding capability. Two large low-loss windows were measured (minimum attenuation <0.2dB/m) with acceptable infrared bend losses.


Room A5 Room A6 Room A7


C L E OQ E L S

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Q E L S

1:30 p.m.–3:15 p.m.QWA • Optical Filamentation and Propagation PhenomenaOren Cohen; Technion, Israel, Presider

1:30 p.m.–3:15 p.m.CWE • High Power Lasers David Roh; Coherent Inc., USA, Presider

1:30 p.m.–3:15 p.m. QWB • Hyperbolic Metamaterials and Their Applications Vladimir M. Shalaev; Purdue Univ., USA, Presider

QWA1 • 1:30 p.m. Tutorial Filamentation of Femtosecond Laser Pulses: Basic Principles and Applications, André Mysyrowicz; Lab d’Optique Appliquée, ENSTA-Paris Tech and École Polytechnique, France. The physical effects leading to filament formation of intense femtosecond laser pulses propagating in air will be introduced. Recent developments and potential applications of filamentation will be described.

Dr. Andre Mysyrowicz studied at ETH in Zurich, Switzerland, made his Ph.D. at the University of Strasbourg, France, then joined CNRS where he is presently a Director of Research emeritus. He was a visiting scientist at the University of Berkeley, Brown University, ATT Bell Labs, Tokyo Univer-sity and Optical Sciences Center in Tucson. His main activities concern the study of high density excitons, ultrafast spectroscopy and more recently the study of filamentation of femtosecond laser pulses. He is the author of about 200 publications (h-index 53) and coauthor of a book entitled “Introduction to semiconductor optics.”

CWE1 • 1:30 p.m.11W Broad Area 976nm DFB Lasers with 58% Efficiency, Christoph M. Schultz, Paul Crump, Hans Wenzel, Olaf Brox, Andre Maaßdorf, Götz Erbert, Günther Tränkle; Ferdinand-Braun-Inst., Leibniz-Inst. für Höchstfrequenztechnik, Germany. Optimized 976nm DFB lasers have peak power conversion efficiency of 58%, peak power of 11W, linewidth of ~ 0.4nm and vertical far-field FWHM 28°. A comparison with Fabry-Pérot lasers to the same design is presented.

QWB1 • 1:30 p.m.Optical Models of the Big Bang and Non-Trivial Space-Time Metrics Based on Metamaterials, Igor I. Smolyaninov1, Evgenii E. Narimanov2; 1Univ. of Maryland, USA, 2Purdue Univ., USA. Optics of metamaterials is shown to provide table top models of non-trivial space-time metrics, such as the “two times physics” in (2+2) dimensions. An optical analogue of the Big Bang-like event is presented.

CWE2 • 1:45 p.m.High Power 1060 nm Ridge Waveguide Lasers with Low-Index Quantum Barriers for Narrow Divergence Angle, Agnieszka Pietrzak, Paul Crump, Hans Wenzel, Frank Bugge, Goetz Erbert, Guenther Traenkle; Ferdinand-Braun-Inst. für Hoechstfrequenztechnik, Germany. Combining low-index quantum-barriers with thick (8.6 µm) waveguide in a multi-QW 1060-nm epi-structure enabled a vertical divergence of <9°. 30 W broad-area and 0.8 W single-transverse-mode operation ridge-waveguide devices are demonstrated using these vertical designs.

QWB2 • 1:45 p.m.Broadband Purcell Effect in Hyperbolic Meta-materials, Zubin Jacob1, Igor Smolyaninov2, Evgenii Narimanov1; 1Purdue Univ., USA, 2Univ. of Maryland, USA. We propose a new approach to the broadband Purcell effect based on metamaterials with hyperbolic dispersion. Highly directional emission and dramatic reduction in spontaneous-emission lifetime due to the singularity in density-of-states leads to interesting applications.

CWE3 • 2:00 p.m.GaSb-Based Semiconductor Disk Lasers for the 2-3 µm Wavelength Range: Versatile Lasers For High-Power And Narrow Linewidth Emission, Marcel Rattunde, Benno Rösener, Sebastian Kas-par, Rüdiger Moser, Christian Manz, Klaus Köhler, Joachim Wagner; Fraunhofer IAF, Germany. Highly efficient GaSb-based semiconductor-disk-lasers in the 1.9-2.8µm range have been fabricated. They reach output powers >3W in CW-operation at room temperature. By using intracavity filters, single-frequency emission with a linewidth below 2.3MHz was achieved.

QWB3 • 2:00 p.m.Radiative Decay Engineering in Strongly Anisotropic Bilayers, Leonid Alekseyev1,2, Evgenii Narimanov2; 1Princeton Univ., USA, 2Purdue Univ., USA. We propose a metamaterial device that exhibits a broadband singularity in the photonic density of states and negative refraction. These combined resonant and non-resonant e ffects allow control over decay rates using a planar nanoscale structure.

CWE4 • 2:15 p.m.Direct Modulation and Wavelength Stabilization of High Power Slab-Coupled Optical Waveguide Lasers, Jonathan Klamkin, Robin K. Huang, Jason J. Plant, Michael K. Connors, Leo J. Missag-gia, William Loh, Gary M. Smith, Kevin G. Ray, Frederick J. O’Donnell, Joseph P. Donnelly, Paul W. Juodawlkis; MIT Lincoln Lab, USA. A slab-coupled optical waveguide laser is wavelength stabilized with a fiber Bragg grating and characterized under a narrow pulse high repetition rate direct modulation scheme suitable for efficient pulse position modulation format optical communica-tion systems.

QWB4 • 2:15 p.m.Broadband, Low-Dispersion, Mid-Infrared Metamaterials, Matthew D. Escarra1, Sukosin Thongrattanasiri2, Anthony J. Hoffman1, Jianxin Chen3, William O. Charles1, Kyle Conover1, Viktor A. Podolskiy2, Claire F. Gmachl1; 1Princeton Univ., USA, 2Oregon State Univ., USA, 3Shanghai Inst. of Technical Physics, Chinese Acad. of Sciences, China. Broad-bandwidth, low-dispersion, optical metamaterials are desired. Reflection measure-ments show that, by using multiple-metamaterial semiconductor stacks of varying thickness and doping, bandwidth is improved by 47% over a single-stack mid-infrared metamaterial, and dispersion appears reduced.

Reminder: CLEO/QELS Program

now available in mobile formats!

Visit

www.cleoconference.org for more information.


Room A8 Room C1&2 Room C3&4San Jose Ballroom IV (San Jose Marriott)

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Q E L S

1:30 p.m.–3:15 p.m. QWC • Spin Dynamics Todd H. Stievater; NRL, USA, Presider

1:30 p.m.–3:15 p.m. CWF • THz Sources Yujie J. Ding; Lehigh Univ., USA, Presider

1:30 p.m.–3:15 p.m. CWG • Components and Subsystems Chris Doerr; Bell Labs, Alcatel-Lucent, USA, Presider

1:30 p.m.–3:15 p.m. QWD • QELS Symposium on Quantum Repeaters and Networks: Quantum Repeater Interface Systems Christoph Simon; Univ. of Calgary, Canada, Presider

QWC1 • 1:30 p.m. Invited Spin Hall Effect of Light in GaAs and Silicon Observed via Nonlinear Optics, Jean-Michel Menard1, Adam E. Mattacchione1, Christine Hautmann2, Markus Betz2, Henry M. van Driel1; 1Univ. of Toronto, Canada, 2Technische Univ. München, Germany. Transverse displacements of the circularly polarized components of a light beam non-normally incident on GaAs and silicon are spatially resolved. The imaging relies on pump-probing of two-photon absorption and optically induced free carrier absorption.

CWF1 • 1:30 p.m. Tutorial Recent Progress on Terahertz Quantum-Cascade Lasers, Sushil Kumar; MIT, USA. Terahertz quantum-cascade lasers are based on intersubband optical transitions that could be “engineered”. Operation above 160K has been demonstrated for frequencies ranging from 1.8-4.4THz. This talk reviews their recent progress, design aspects and future challenges.

Sushil Kumar was born in Jaipur, India, and received a B.E. degree from the Delhi College of Engineering, Delhi (1998), a M.S. degree from the University of Michigan, Ann Arbor (2001), and a Ph.D. degree from the Massachusetts Institute of Technology, Cambridge (2007), all in the field of electrical engineering. His Ph.D. thesis work involved various aspects of the development of terahertz quantum-cascade lasers (QCLs). He is presently a postdoctoral associate at the Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge. His current research interests include development of terahertz QCLs and other devices based on intersubband transi-tions in quantum-wells.

CWG1 • 1:30 p.m.Incident-Power-Dependent Extinction Ratio of Electroabsorption Modulator Integrated with Distributed Feedback Lasers: Theory and Ex-periment, Takeshi Fujisawa, Takayuki Yamanaka, Takashi Tadokoro, Naoki Fujiwara, Masakazu Arai, Wataru Kobayashi, Yoshihiro Kawaguchi, Ken Tsuzuki, Fumiyoshi Kano; NTT Photonics Labs, Japan. Incident-power-dependent extinction ratio of electroabsorption modulators is shown and theoretically investigated by using microscopic theory combined with heat-flux calculation. The phenomenon stems from voltage-dependent temperature rise and the calculated results agree well with the experiment.

QWD1 • 1:30 p.m. Invited Quantum Optical Networks with Trapped Ions, Christopher Monroe; Univ. of Maryland and Joint Quantum Inst., USA. Trapped atomic ion quantum memories can be locally entangled via the Cou-lomb interaction and remotely entangled based on probabilistic photonic interfaces. Both versions are presented, highlighting their features and drawbacks when applied to quantum computing and quantum communication protocols.

CWG2 • 1:45 p.m.Compact GaAs Electro-Optic (EO) Modulator with Ultra Low Switching Voltage and Large Bandwidth Enabled by Transparent Conducting (TC) Bridge Electrodes, Fei Yi, Fang Ou, Boyang Liu, Yingyan Huang, Seng Tiong Ho; Northwestern Univ., USA. We propose a compact GaAs EO modulator structure with ultra low switching voltage (~ 0.5V) and large modulation bandwidth (f3dBo ≈ 50GHz), enabled by transparent conduct-ing (TC) material as bridge electrodes.

QWC2 • 2:00 p.m.Observation of Second Harmonic Generation Induced by Pure Spin Currents in Semiconduc-tors, Lalani K. Werake, Hui Zhao; Univ. of Kansas, USA. We demonstrate second harmonic genera-tion induced by pure spin currents in semiconduc-tors, and show that this effect can be used for the direct, noninvasive, and nondestructive detection of pure spin currents.

CWG3 • 2:00 p.m.Large Tunable Delay of an RF Photonic Sig-nal with 130 GHz Bandwidth Using Silicon Microresonators, Jaime Cardenas1, Sasikanth Manipatruni1, Nicolás Sherwood-Droz1, Carl B. Poitras1, BeiBei Zhang2, Jacob B. Khurgin2, Paul A. Morton3, Michal Lipson1; 1Cornell Univ., USA, 2Johns Hopkins Univ., USA, 3Morton Photonics, USA. We demonstrate a tunable-delay of 154ps of a 130GHz-bandwidth RF-signal using silicon-microresonators. To delay such high-bandwidth without distortion, we delay an equivalent signal with a much smaller-bandwidth (20GHz single-sideband) while preserving the original signal’s phase.

QWD2 • 2:00 p.m. Invited Quantum Networks with Single Atoms, Photons and Phonons, H. Jeff Kimble; Caltech, USA. Fundamental interactions between light and matter can be harnessed for the implementation of Quantum Networks [Nature 453, 1023 (2008)]. Functionality for diverse tasks in Quantum Information Science is achieved by coherent quantum-optical interconnects involving single atoms, photons, and phonons.

QWC3 • 2:15 p.m.Observation of Intrinsic Spin Hall Effect in Semiconductors, Lalani K. Werake, Brian A. Ruzicka, Hui Zhao; Univ. of Kansas, USA. The intrinsic spin Hall effect is observed in undoped GaAs quantum-well samples by temporally resolving the current generation process in the ballistic regime, where the extrinsic spin Hall effect is absent.

CWG4 • 2:15 p.m.Transparent High-Data-Rate Optical Transmis-sion through Broadband Hitless Bypass Switches for Chip-Scale Optical Networks, Mehmet Sirin Aras1, Aleksandr Biberman1, Noam Ophir1, Aaron Stein2, Serdar Kocaman1, Rohit Chatterjee1, Mingbin Yu3, Dim-Lee Kwong3, Keren Bergman1, Chee Wei Wong1; 1Columbia Univ., USA, 2Ctr. for Functional Nanomaterials, Brookhaven Natl. Lab, USA, 3Inst. of Microelectronics, Singapore. We demonstrate 10-Gb/s optical data channels through broadband hitless switches, with open eye-diagrams and error-free operation (BERs less than 10-12). Both through- and drop-ports are measured in the hitless operation for transparent chip-scale optical networks.


Room B2-B3San Jose Salon I & II (San Jose Marriott)


C L E O

San Jose Salon III (San Jose Marriott)

J O I N T

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1:30 p.m.–3:15 p.m. CWH • Ultrafast and Broadband Applications of Nonlinear Optics Konstantin Vodopyanov; Stanford Univ., USA, Presider

1:30 p.m.–3:15 p.m. CWI • Transmission and Integrated Photonics Wolfgang Freude; Karlsruhe Inst. of Technology (KIT), Germany, Presider

1:30 p.m.–3:15 p.m. JWB • Optical Ranging and Measurements Clifford R. Pollock; Cornell Univ., USA, Presider

JWB1 • 1:30 p.m. Invited Linearization of Ultra-Broadband Optical Chirps for Precision Length Metrology, Zeb W. Barber1, Christoffer J. Renner1, Wm. Randall Babbitt1, Randy R. Reibel2, Peter A. Roos2, Trenton Berg2, Brant Kaylor2, Nathan Greenfield2; 1Mon-tana State Univ., USA, 2Bridger Photonics, USA. We demonstrate precise active linearization of ultra-broadband (>5 THz) laser frequency sweeps using a self-heterodyne technique. Frequency errors less than 170 kHz relative to linearity were observed enabling very high resolution ranging over large distances.

CWH1 • 1:30 p.m.Ultrafast, Chipscale, Optically-Gated Optical Sampler, Ta-Ming Shih1,2, Chris H. Sarantos1,3, Susan M. Haynes1, John E. Heebner1; 1Lawrence Livermore Natl. Lab, USA, 2MIT, USA, 3Univ. of California at Santa Barbara, USA. We demonstrate a novel single-shot optical recorder capable of picosecond-scale resolution across hundreds of ps of record length. The concept is a hybrid between cross-correlators and Mach-Zehnder-gated sam-plers, with advantages over both techniques.

CWI1 • 1:30 p.m.Simultaneous Triple-Waveband, 10-Gbps Transmission in 1-μm, C-, and L-Wavebands over a 5.4-km Long Holey Fiber, Naokatsu Yamamoto1, Yu Omigawa2, Kouichi Akahane1, Tetsuya Kawanishi1, Hideyuki Sotobayashi2; 1NICT, Japan, 2Aoyama Gakuin Univ., Japan. Simultaneous triple-waveband, 10-Gbps error-free photonic transport with clear eye-openings are demonstrated in the 1-μm, C-, and L-wavebands by using an ultra-broadband photonic transport system comprising a single and long holey fiber transmission line.

CWH2 • 1:45 p.m.Generation of High Energy Sub 50 fs, Vacuum UV Pulses by Noncollinear FWM in Argon, Masood Ghotbi, Marcus Beutler, Valentin Petrov, Frank Noack; Max-Born-Inst. for Nonlinear Optics and Short Pulse Spectroscopy, Germany. Using non-collinear difference-frequency four-wave-mixing between the fundamental and third-harmonic of an amplified Ti:sapphire laser in argon, sub-50-fs VUV pulses with more than 2.5-µJ at 160-nm are generated.

CWI2 • 1:45 p.m.Spectrally Wide and High-Power Er-Yb Fiber Amplifier for 40 Gb/s Telecommunications Applications, Raja Ahmad1, Martin Rochette1, Stephane Chatigny2; 1Dept. of Electrical and Com-puter Engineering, McGill Univ., Canada, 2Coractive High-Tech Inc., Canada, Canada. A multimode Erbium-Ytterbium doped fiber can be advanta-geously used for DWDM channel amplification over an extended spectral band with respect to conventional designs. Bit error ratio at 40 Gb/s, gain and noise figure are provided.

JWB2 • 2:00 p.m.Advanced Length Metrology with Pulse Trains’ Destructive Interference by a Femtosecond Optical Frequency Comb, Dong Wei, Satoru Takahashi, Kiyoshi Takamasu, Hirokazu Matsu-moto; Univ. of Tokyo, Japan. We proposed the use of a femtosecond optical frequency comb for length measurement based on pulse trains’ destructive interference. The theoretical derivation shows that the present technique offers a significantly differ-ent approach to length measurement.

CWH3 • 2:00 p.m. InvitedUltra-Broadband Optical Parametric Chirped-Pulse Amplifier Based on Aperiodically Poled Mg:LiNbO3 in the Mid-Infrared, Clemens Heese1, Lukas Gallmann1, Ursula Keller1, Christopher Richard Phillips2, Martin Fejer2; 1ETH Zurich, Switzerland, 2Stanford Univ., USA. We present an ultra-broadband optical parametric amplification system based on aperiodically poled Mg:LiNbO3 providing 800 nm bandwidth around 3.4 μm in a 7.4-mm long medium. It delivers 75 fs pulses with 1.5 μJ pulse energy.

CWI3 • 2:00 p.m.Multicasting of 40-Gbit/s NRZ-OOK Data into 24 RZ Copies Using a Single Pump and Supercontinuum Generation, Omer F. Yilmaz, Scott Nuccio, Jian Wang, Xiaoxia Wu, Alan E. Willner; Univ. of Southern California, USA. We demonstrate multicasting of 40-Gb/s NRZ-OOK data into 24 RZ copies using a single pump and supercontinuum generation. The NRZ signal is optically sampled and a supercontinuum is gener-ated using the sampled signal.

JWB3 • 2:15 p.m.Measurement of Solder Ball Height and Shape Defects Using a Visible Supercontinuum Based Line Scan Interferometer, Malay Kumar1, Mohammed N. Islam1, Fred L. Terry Jr.1, Douglas Davidson2, Carl Aleksoff2; 1Univ. of Michigan, USA, 2Coherix Inc., USA. We identify shape defects on ~300um high solder balls by measuring the 3-D profile over +/-20 degrees down the ball surface. A broadband line scan interferometer enables measurement of ball height with 125nm axial resolution.

CWI4 • 2:15 p.m.All-Order Polarization Mode Dispersion (PMD) Compensation in 10Gbit/s×2 Pol-Mux System via Hyperfine Resolution Optical Pulse Shaper, Li Xu, Houxun Miao, Andrew M. Weiner; Purdue Univ., USA. Employing an optical pulse shaper with 1.6 GHz/pixel resolution, we experimentally demonstrate optical compensation of all-order polarization mode dispersion with >40 ps mean differential group delay in a 10 Gbit/s×2 Pol-Mux system.



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CWA • Carrier Envelope Phase Stabilization and Few Cycle Generation I—Continued

CWB • Photonic Crystals II: Cavities—Continued

CWC • Fiber Design—Continued CWD • Multiphoton Microscopy—Continued

CWA5 • 2:30 p.m.Generating Energetic Few-Cycle Pulses at 800 nm Using Soliton Compression with Type 0 Cascaded Quadratic Interaction in Lithium Niobate, Morten Bache1, Binbin Zhou1, Andy Chong2, Frank W. Wise2; 1DTU Fotonik, Technical Univ. of Denmark, Denmark, 2Dept. of Applied and Engineering Physics, Cornell Univ., USA. We show that ultra-short few-cycle pulses can be generated through soliton compression of energetic femto-second pulses from a Ti:Sapphire regenerative amplifier. The compression relies on cascaded type 0 second-harmonic generation in mm-length lithium niobate crystals.

CWB4 • 2:30 p.m.Silicon-Carbide-Based Two-Dimensional Photonic Crystal Nanocavities, Shota Yamada1, Bong-Shik Song1,2, Takashi Asano1, Susumu Noda1; 1Dept. of Electronic Science and Engineering Kyoto Univ., Japan, 2School of Information and Commu-nication, Sungkyunkwan Univ., Republic of Korea. We demonstrate the first silicon-carbide-based photonic crystal nanocavities operated at a wide range of 500~1400 nm. Furthermore, we show that two-photon absorption in the cavity is completely inhibited even at ultra-high-energy light (~1550 nm) input.

CWC5 • 2:30 p.m.Novel Technique for Mode Selection in a Large-Mode-Area Fiber Laser, Jae M. O. Daniel, Jaclyn S. P. Chan, Ji Won Kim, Morten Ibsen, Jayanta Sahu, W.A Clarkson; Optoelectronics Res. Ctr., Univ. of Southampton, UK. A novel method for selectively exciting a single-spatial-mode (fundamental or higher-order) in a high-power multi-mode fiber laser resonator is presented. Preliminary results for a cladding-pumped Tm-doped silica fiber laser are discussed

CWD4 • 2:30 p.m.Multiphoton Coherence Domain Molecular Imaging, Quijie Wan, Brian E. Applegate; Texas A&M Univ., USA. We have developed a novel high-resolution molecular imaging technique, pump-probe optical coherence microscopy, based on the fusion of pump-probe spectroscopy and optical coherence microscopy and demonstrated it on fixed human skin containing a nodular melanoma.

CWA6 • 2:45 p.m.Energy Scaling of Few-Cycle Pulse Compression in Hollow Fibers Using Circular Polarization, Arnaud Malvache, Xiaowei Chen, Aurélie Jullien, Rodrigo Lopez-Martens; Lab d’Optique Appliquée, ENSTA ParisTech, École Polytechnique, CNRS, France. We show that few-cycle pulse compression in statically filled hollow fibers can be scaled in energy using circular polarization. This technique could be useful for upgrading pressure gradient devices while preserving stable conditions of operation.

CWB5 • 2:45 p.m.Deterministic Design of Ultrahigh Q and Small Mode Volume Photonic Crystal Nanobeam Cav-ity, Qimin Quan, Parag B. Deotare, Marko Loncar; Harvard Univ., USA. A deterministic design of an ultrahigh Q, subwavelength mode volume, photonic crystal nanobeam cavity, operating at the target frequency, is proposed and experimentally demonstrated. Nonlinear bistability is observed in such nanobeam cavities fabricated in Si.

CWC6 • 2:45 p.m.Influence of Index Depressions in Active Large Pitch Fibers, Florian Jansen1, Martin Baumgartl1,2, Hans-Jürgen Otto1, Cesar Jauregui1, Jens Limpert1,2, Andreas Tünnermann1,2,3; 1Inst. of Applied Physics, Friedrich-Schiller-Univ. Jena, Germany, 2Helmholtz-Inst. Jena, Germany, 3Fraunhofer Inst. for Applied Optics and Precision Engineering, Germany. The analysis of the influence of a core index depression on the higher-order mode discrimination and the beam quality of the fundamental mode in differ-ent designs of active large pitch photonic crystal fibers is discussed.

CWD5 • 2:45 p.m.Adaptive Optics for Two-Photon and Harmonic Generation Microscopy, Anisha Thayil, Alexan-der Jesacher, Tony Wilson, Martin Booth; Univ. of Oxford, UK. Specimen-induced aberrations frequently affect image quality in high-resolution microscopes. We apply adaptive optics to correct aberrations in two-photon fluorescence, and second and third harmonic microscopes. In particular, this is applied to imaging of mouse embryos.

CWA7 • 3:00 p.m.Stabilizing Carrier-Envelope Phase of a 30 fs 1 kHz, 6 mJ Ti:sapphire Regenerative Amplifier, Shouyuan Chen, Michael Chini, He Wang, Chenxia Yun, Hiroki Mashiko, Yi Wu, Zenghu Chang; Kansas State Univ., USA. Carrier-envelope phase stabilization of a two-stage chirped pulse amplifier laser system with regenerative amplification as the preamplifier is demonstrated with a 90 mrad rms error for a locking period of 4.5 h.

CWB6 • 3:00 p.m.Inverse Design of Nanophotonic Structures Using Complementary Convex Optimization, Jesse Lu, Jelena Vuckovic; Stanford Univ., USA. We present a computationally-fast inverse design method for nanophotonic structures, based on the complementary optimization of both dielec-tric structure and resonant field variables. This method is used to effciently design multi-objective nanophotonic resonators in 2-D.

CWC7 • 3:00 p.m.1180 nm Linearly-Polarized Fiber Laser with High Slope Efficiency Employing Low-Loss Ytterbium-Doped Polarization Maintaining Solid Photonic Bandgap Fiber, Masahiro Kashi-wagi, Katsuhiro Takenaga, Kentaro Ichii, Tomoharu Kitabayashi, Shoji Tanigawa, Ken Shima, Shoichiro Matsuo, Munehisa Fujimaki, Kuniharu Himeno; Fujikura Ltd., Japan. A linearly-polarized fiber laser operating at 1180 nm was demonstrated using a low-loss ytterbium-doped polarization maintaining solid photonic bandgap fiber. A slope efficiency of 30% was achieved.

CWD6 • 3:00 p.m.Multiphoton Modulation Microscopy for High-Speed Deep Biological Imaging, Scott S. Howard, Adam A. Straub, Chrix Xu; Cornell Univ., USA. We demonstrate a novel line scanning multiphoton microscope with a single element detector, po-tentially allowing fast imaging deep into scattering tissue. Multiphoton biological imaging of ex vivo rat tendon using this technique is presented.

3:00 p.m.–5:00 p.m. Market Focus: Photonics for Defense and Security, San Jose McEnery Convention Center, Exhibit Hall 2

3:15 p.m.–4:45 p.m. Coffee Break, Exhibit Only Time, San Jose McEnery Convention Center, Exhibit Halls 1 and 2

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QWA • Optical Filamentation and Propagation Phenomena—Continued

CWE • High Power Lasers—Continued

QWB • Hyperbolic Metamaterials and Their Applications—Continued

QWA2 • 2:30 p.m.Controlling Directionality of Mirror-Less Las-ing by Pulse Shaping and Timing, Alexei Sokolov, Gombojav O. Ariunbold, Xi Wang, Marlan O. Scully; Texas A&M Univ., USA. We study mirror-less lasing in a dye solution two-photon-pumped by a sequence of pre-chirped femtosecond pulses. We demonstrate control of lasing direction, with-out changing the excitation geometry, by adjusting the pump pulse timing and shape.

CWE5 • 2:30 p.m.1500-nm InP Diode Lasers Optimized for Use at 77K Demonstrate 73% Conversion Efficiency, Paul Leisher1, Weimin Dong1, Mike Grimshaw1, Mark DeFranza1, Mark Dubinskii2, Steve Patter-son1, Rob Martinsen1; 1nLight Corp., USA, 2ARL, USA. The power conversion efficiency of cryogen-ically-cooled InP diode lasers is limited by excess electrical voltage caused by carrier freeze-out. A laser design which specifically mitigates this effect demonstrates peak efficiency of 73% at 77K.

QWB5 • 2:30 p.m.Analytical Technique for Determining the Size of Subwavelength Focal Spots in far Field, Sukosin Thongrattanasiri1, Anthony J. Hoffman2, Matthew Escarra2, Claire F. Gmachl2, Viktor A. Podolskiy1,3; 1Oregon State Univ., USA, 2Princeton Univ., USA, 3Univ. of Massachusetts Lowell, USA. We develop a technique for determining the size of subwavelength focal spots without near-field microscopy, based on carefully designed gratings that convert the subwavelength information into propagating waves, far-field measurements, and computer post-processing.

QWA3 • 2:45 p.m.Oblique Airy Wavepackets in Bidispersive Optical Media, Toni J. Eichelkraut1, Georgios A. Siviloglou1, Demetrios N. Christodoulides1, Ioannis M. Besieris2; 1CREOL, Univ. of Central Florida, USA, 2Bradley Dept. of Electrical and Computer Engineering, Virginia Tech, USA. We show that a new class of skewed, non-spreading Airy wave-packets is possible in optical bidispersive systems. Their obliquity is found to have a profound effect on their spatiotemporal acceleration dynamics. Pertinent examples are provided.

CWE6 • 2:45 p.m.Limitations of Noise Figure in InGaAsP Quan-tum-Well Semiconductor Optical Amplifiers, William Loh1,2, Jason J. Plant1, Jonathan Klamkin1, Joseph P. Donnelly1, Frederick J. O’Donnell1, Rajeev J. Ram2, Paul W. Juodawlkis1; 1MIT Lincoln Lab, USA, 2MIT, USA. We present the first quantita-tive investigation of noise figure degradation in InGaAsP quantum-well semiconductor optical amplifiers at high bias. We compare two experi-mental measurements of population inversion fac-tor for a 1.5-μm slab-coupled optical-waveguide amplifier (SCOWA).

QWB6 • 2:45 p.m.An Anisotropic Metamaterial Leaky Waveguide, Huikan Liu, Kevin J. Webb; Purdue Univ., USA. We propose a leaky optical waveguide achieved with a uniaxially anisotropic metamaterial that supports both forward and backward leaky waves. The backward leaky nature is exploited in a sub-diffraction imaging system.

QWA4 • 3:00 p.m.Multigigawatt Sub-Cycle Optical Field Wave-forms from Shock-Wave-Enhanced Super-continuum Generation in a Molecular Gas, Wolfgang Schweinberger1, Reinhard Kienberger1, Georg Korn1, Aleksandr Voronin2, Abdallah Azzeer3, Aleksei Zheltikov2, Ferenc Krausz1; 1Max-Planck-Inst. für Quantenoptik, Germany, 2Moscow State Univ., Russian Federation, 3King Saud Univ., Saudi Arabia. Interaction of intense few-cycle light pulses with molecular gases in hollow waveguides is shown to give rise to a variety of intriguing physical effects from shock-wave-enhanced generation of multigigawatt sub-cycle pulses to coupled-state single-cycle-soliton-molecular-vibration dynamics.

CWE7 • 3:00 p.m.Second Harmonic Generation of Picosecond Pulses at 530 nm in Bulk PPLN at Variable Repetition Rates, Sina Riecke1, Kristian Lau-ritsen1, Rainer Erdmann1, Mirko Uebernickel2, Katrin Paschke2, Götz Erbert2; 1PicoQuant GmbH, Germany, 2Ferdinand-Braun-Inst. für Höchstfre-quenztechnik, Germany. Green picosecond pulses with peak powers of more than 4W are generated by second harmonic generation in bulk PPLN. These power levels exceed all previous electrically triggerable green picosecond sources by an order of magnitude.

QWB7 • 3:00 p.m.Experimental Demonstration of Hyperbolic Wave Vector Surfaces in Silver Nanowire Arrays, Joerg Schilling1, Jyotirmayee Kanungo2; 1ZIK “SiLi-nano”, Martin-Luther-Univ. Halle-Witternber, Ger-many, 2Queen’s Univ. Belfast, UK. The two principal effective dielectric constants of silver nanowire arrays are directly derived from the angular de-pendence of the Fabry-Perot peaks in transmission measurements. The hyperbolic wave vector surface is mapped from the experimental data.



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Q E L S

QWC • Spin Dynamics—Continued

CWF • THz Sources—Continued CWG • Components and Subsystems—Continued

QWD • QELS Symposium on Quantum Repeaters and Networks: Quantum Repeater Interface Systems—Continued

QWC4 • 2:30 p.m.Quantum Interference between Photo-Excited States in a Solid-State Mott Insulator, Daniele Brida1, Simon Wall2, Stephen Clark2, Henri Ehrke2, Dieter Jaksch2, Arzhang Ardavan2, Stefano Bonora1, Hirotaka Uemura3, Yukihiro Takahashi4, Tsuyoshi Hasegawa5, Hiroshi Okamoto3, Giulio Cerullo1, Andrea Cavalleri2; 1Dept. di Fisica, Politecnico di Milano, Italy, 2Dept. of Physics, Clarendon Lab, UK, 3Dept. of Advanced Materials Science, Univ. of Tokyo, Japan, 4Phtonics Res. Inst., AIST, Japan, 5CREST, JST, Japan. By exciting with sub-10-fs 1.6-µm pulses the quasi-one-dimensional Mott in-sulator ET-F2TCNQ, we observe prompt collapse of the Mott gap modulated by 24-THz oscillations of the gap, which are assigned to quantum interfer-ence between holon-doublon excitations.

CWF2 • 2:30 p.m.Power Scaling of Widely-Tunable Mono-chromatic THz Pulses Based on Difference-Frequency Generation in a Pair of Stacked GaP Plates, Yi Jiang1, Yujie J. Ding1, Ioulia B. Zotova2; 1Lehigh Univ., USA, 2ArkLight, USA. By stack-ing two GaP plates, we have improved the THz peak power from 433 W to 1.36 kW based on difference-frequency generation, corresponding to an enhancement by two orders of magnitude over the previous result.

CWG5 • 2:30 p.m. InvitedCavity Enhanced On-Chip Spectrometer with Sub-nm Resolution, Bernardo B. C. Kyotoku1,2, Long Chen1, Michal Lipson1; 1Cornell Univ., USA, 2Univ. Federal de Pernambuco, Brazil. A novel on-chip spectrometer device using combined func-tionalities of a micro-ring resonator and a planar diffraction grating is proposed and demonstrated. The spectrometer has a 2mm2 footprint and exhib-its 100 channels each with 0.05nm FWHM.

QWD3 • 2:30 p.m.Nitrogen-Vacancy Centers Optically Coupled to Hybrid Microcavities, Paul E. Barclay, Kai-Mei C. Fu, Charles Santori, Ray G. Beausoleil; Hewlett-Packard Labs, USA. Optical coupling between nitrogen-vacancy (NV) centers in single-crystal diamond and hybrid gallium phosphide micro-cavities is demonstrated. NV photoluminescence coupled into whispering gallery modes with Q > 25000 is observed.

QWC5 • 2:45 p.m.Ultrafast, Element-Specific, Demagnetiza-tion Dynamics Probed Using Coherent High Harmonic Beams, Chan La-o-vorakiat1, Stefan Mathias1,2, Patrik Grychtol3, Roman Adam3, Mark Siemens1, Justin M. Shaw4, Hans Nembach4, Martin Aeschlimann2, Claus M. Schneider3, Thomas J. Silva4, Margaret M. Murnane1, Henry C. Kapteyn1; 1JILA, Univ. of Colorado, USA, 2Univ. of Kaiserslautern and Res. Ctr. OPTIMAS, Germany, 3Inst. of Solid State Res., Res. Ctr. Jülich, Germany, 4Electromagnetics Div., NIST, USA. High harmonics from a tabletop laser are used to probe ultrafast demagnetization of a compound material (Permalloy) with elemental selectivity. We achieve the highest time resolution, element-specific, measurements to date at 50fs.

CWF3 • 2:45 p.m.Difference Frequency Generation of THz Waves Inside a High-Finesse Ring-Cavity OPO Pumped by a Fiber Laser, Walter Hurlbut1, Vladi-mir Kozlov1, Konstantin Vodopyanov2; 1Microtech Instruments, Inc., USA, 2Stanford Univ., USA. We produce tunable (1.3-3THz) narrow-band THz-wave output with >130-microWatt average power in periodically-inverted GaAs inside a near-degenerate type-0 PPLN OPO containing thin YAG etalon for spectral control, synchronously pumped by a 1064-nm 10-ps Yb-fiber laser.

CWG6 • 3:00 p.m.Integrated Mid-Infrared Chalcogenide Glass Waveguide and Quantum Cascade Laser, Candice Tsay1, Elvis Mujagic2, Claire Gmachl1, Craig B. Arnold1; 1Princeton Univ., USA, 2Vienna Univ. of Technology, Austria. We use an additive solution-casting process to fabricate chalcogenide glass planar waveguides specifically for the mid-IR, and directly integrate the waveguides on-chip with an existing QCL.

QWD4 • 2:45 p.m.Quantum Interference of Tunably Indistinguish-able Photons from Remote Organic Molecules, Yves Rezus1, Robert Lettow1, Alois Renn1, Gert Zumofen1, Erkki Ikonen2, Stephan Goetzinger1, Vahid Sandoghdar1; 1Lab of Physical Chemistry and optETH, ETH Zurich, Switzerland, 2Metrology Res. Inst., Helsinki Univ. of Technology, Finland. We demonstrate two-photon interference using two remote organic molecules as bright solid-state sources of indistinguishable photons. By varying the transition frequency and spectral width of one molecule, we explore the effect of photon distinguishability.

QWC6 • 3:00 p.m.Ultrafast Optical Measurement of Hole and Electron Spin Dynamics in Germanium, Arthur L. Smirl1, Eric J. Loren1, Julien Rioux2, J. E. Sipe2, Henry M. van Driel2; 1Lab for Photonics and Quan-tum Electronics, Univ. of Iowa, USA, 2Dept. of Phys-ics and Inst. for Optical Sciences, Univ. of Toronto, Canada. Spin-dependent carrier dynamics in Ge, including hole spin relaxation, intervalley scatter-ing, many-body effects, cooling, and phase space filling, are selectively investigated and analyzed for the first time using spectrally, temporally and polarization resolved pump-probe techniques.

CWF4 • 3:00 p.m.THz Source Based on External Cavity Enhanced Difference Frequency Generation by Using Monolithic Single-Frequency Pulsed Fiber La-sers, Eliot B. Petersen1,2, Wei Shi1, Dan T. Nguyen1, Zhidong Yao1, Jie Zong1, Arturo Chavez-Pirson1, Nasser Peyghambarian1,3; 1NP Photonics, USA, 2Physics Dept., Univ. of Arizona, USA, 3College of Optical Sciences, Univ. of Arizona, USA. We dem-onstrate a resonant cavity approach to enhance narrow band THz radiation. Two nanosecond laser pulses in a cavity interact with a nonlinear crystal to produce 7-fold enhancement of THz power compared to single-pass orientation.

QWD5 • 3:00 p.m.Two-Photon Interference from Separate Quan-tum Dots, Edward B. Flagg, Andreas Muller, Sergey V. Polyakov, Alexander Ling, Alan L. Migdall, Glenn S. Solomon; Joint Quantum Inst., NIST and Univ. of Maryland, USA. We use strain to tune into resonance two different, remote quantum dots and show that the emitted photons will produce Hong-Ou-Mandel interference. Pulsed excitation will allow deterministic timing of these indistin-guishable photons.






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CWH • Ultrafast and Broadband Applications of Nonlinear Optics—Continued

CWI • Transmission and Integrated Photonics—Continued

JWB • Optical Ranging and Measurements—Continued

JWB4 • 2:30 p.m.Absolute Distance Measurement with Asyn-chronous-Optical-Sampling Terahertz Impulse Radar, Takeshi Yasui, Yoshiyuki Ohgi, Yasuhiro Kabetani, Shuko Yokoyama, Tsutomu Araki; Osaka Univ., Japan. We proposed a method to determine the absolute distance of a distant target using asynchronous-optical-sampling terahertz impulse radar. The determined distance was good agreement with the actual distance measured by a scale.

CWH4 • 2:30 p.m.Vernier Frequency Sampling - A New Approach for Broadband High-Resolution Spectroscopy, Lucille Mussio, Bertrand G. M. Hardy, Myriam Raybaut, Antoine Godard, Ajmal K. Mohamed, Michel Lefebvre; ONERA - the French Aerospace Lab, France. We present a novel method for broadband spectroscopy. Due to the entangle-ment of two cavities within an optical parametric oscillator, frequency resolution and span are widely adjustable. The technique is applied to CO2 remote sensing.

CWI5 • 2:30 p.m.Broadband Continuous Wavelength Conversion of 10-Gb/s Data in Silicon Waveguides Spanning S-, C-, and L-Bands, Noam Ophir1, Aleksandr Biberman1, Kevin J. Luke1, Amy C. Turner-Foster2, Mark A. Foster3, Michal Lipson2, Alexander L. Gaeta3, Keren Bergman1; 1Dept. of Electrical Engineering, Columbia Univ., USA, 2School of Electrical and Computer Engineering, Cornell Univ., USA, 3School of Applied and Engineering Physics, Cornell Univ., USA. We demonstrate broadband continuous wavelength conversion of 10-Gb/s data across 100 nm using four-wave mixing in dispersion-engineered silicon waveguides. Error-free operation and constant 2-dB power penalties are experimentally obtained for all examined probe-idler separations.

JWB5 • 2:45 p.m.Molecular Water Accumulation on Silica Measured with Picometer Height Resolution, Xuefeng Wang, Ming Zhao, David D. Nolte; Physics Dept., Purdue Univ., USA. We observed water film accumulation on silica surfaces to 1 picometer resolution using optical land-contrast (LC) in-terferometry. The land-contrast approach is non-destructive and allows real-time measurement of thickness variation of small molecular films.

CWH5 • 2:45 p.m.Pulse Compression Dynamics in Synchronously Pumped Continuous Wave Mode-Locked Ra-man Oscillators, Eduardo Granados, Helen M. Pask, Richard P. Mildren, David J. Spence; Mac-quarie Univ., Australia. We present a numerical model that explains the pulse compression dynamics occurring in synchronously-pumped Raman oscillators based on transient Stimulated Raman Scattering equations. Excellent agreement is found between our theoretical results and the experimental data.

CWI6 • 2:45 p.m.Self-Phase Modulation Based Optical Regenera-tion of 10 Gb/s, 1.8 ps RZ Signal Using Carbon Nanotube Device, K. K. Chow, S. Yamashita; Dept. of Electrical Engineering and Information Systems, Univ. of Tokyo, Japan. We report the observation of self-phase modulation generated in a carbon-nanotube- deposited fiber device. SPM-based optical regeneration of a distorted 10-Gb/s return-to-zero signal is demonstrated and a negative power penalty is obtained in bit-error-rate measurements.

JWB6 • 3:00 p.m.Optical Coherence Tomography for Non-Destructive Investigation of Silicon Integrated-Circuits, Keith A. Serrels, Michael K. Renner, Derryck T. Reid; Heriot-Watt Univ., UK. We pres-ent the development of an ultra-high-resolution high-dynamic-range infrared optical coherence tomography imaging system for the novel purpose of sub-surface inspection of silicon integrated-circuits. Examples of substrate thickness profiling and device feature inspection are demonstrated.

CWH6 • 3:00 p.m.Coherent Raman Microscopy with a Fiber-Format Femtosecond Laser Oscillator, Marco Marangoni, Alessio Gambetta, Vikas Kumar, Giulia Grancini, Dario Polli, Cristian Manzoni, Roberta Ramponi, Giulio Cerullo; Politecnico di Milano, Italy. A novel highly simplified architecture for Coherent Raman Scattering microscopy (CARS and SRS) is demonstrated, where multiple tunable narrowband picosecond pulses are generated by spectral compression of femtosecond pulses emit-ted by a compact Er-fiber oscillator.

CWI7 • 3:00 p.m.Optical Crosstalk in a Silicon Nanowaveguide, Yoshitomo Okawachi1, Onur Kuzucu1, Aleksandr Biberman2, Noam Ophir2, Mark A. Foster1, Amy C. Turner-Foster1, Reza Salem1, Michal Lipson1, Alex-ander L. Gaeta1; 1Cornell Univ., USA, 2Columbia Univ., USA. We characterize optical crosstalk and the associated bit-error rate degradation in silicon nanowaveguides. Results indicate that crosstalk decreases with increasing modulation frequency, which we attribute to free-carrier lifetime in the nanowaveguides.





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4:45 p.m.–6:30 p.m. CWJ • Carrier Envelope Stabilization and Few Cycle Generation II Randy Bartels; Colorado State Univ., USA, Presider

4:45 p.m.–6:15 p.m. CWK • Photonic Crystals III: Lasers Armand Rosenberg; NRL, USA, Presider

4:45 p.m.–6:30 p.m. CWL • Fiber Modal Interactions Johan Nilsson; Univ. of Southampton, UK, Presider

4:45 p.m.–6:30 p.m. CWM • Optofluidics for Photonic Applications David Erickson; Cornell Univ., USA, Presider

CWJ1 • 4:45 p.m. Invited Single-Cycle Light Pulses from a Compact Er:Fiber Laser, Günther Krauss, Tobias Hanke, Alexander Sell, Stefan Eggert, Rupert Huber, Alfred Leitenstorfer; Univ. of Konstanz, Germany. We demonstrate a setup based entirely on compact Er:fiber technology which synthesizes pulses of a duration of 4.3 fs. This value corresponds to a single cycle of light in the telecom wavelength region.

CWK1 • 4:45 p.m. Invited Low-Power and High-Speed Operation of In-GaAsP/InP Photonic Crystal Nanocavity Laser Using Wavelength-Sized Buried Heterostruc-ture, Akihiko Shinya1, Shinji Matsuo2, Takaaki Kakitsuka2, Kengo Nozaki1, Toru Segawa2, Tomonari Sato2, Yoshihiro Kawaguch2, Masaya Notomi1; 1NTT Basic Res. Labs, Japan, 2NTT Photonics Labs, Japan. We describe the room temperature CW operation of an ultra-small buried heterostructure photonic crystal laser. The threshold power is only 1.5μW, the fiber output power is 0.44μW, and the 3-dB modulation speed is 5.5GHz.

CWL1 • 4:45 p.m. InvitedMeasuring the Modes of Optical Fibers Using S2 Imaging, Jeffrey W. Nicholson, John M. Fini, Samir Ghalmi, Jayesh C. Jasapara, Anthony DeSantolo, Eric Monberg, Frank Dimarcello; OFS Labs, USA. Multiple higher-order-modes propagating simul-taneously in large-mode-area optical fibers are measured and their relative power levels quantified using spatially and spectrally resolved imaging.

CWM1 • 4:45 p.m. Imaging Based Optofluidic Interferometer on Chip, Wuzhou Song, Demetri Psaltis; Swiss Federal Inst. of Technology Lausanne, École Polytechnique Fédérale de Lausanne, Switzerland. We introduce for the first time an integrated optofluidic in-terferometer on a PDMS microfluidic chip. By imaging the local interference patterns inside the chip, both of the fluid pressure and flow rate can be measured.

CWM2 • 5:00 p.m. Time-Resolved High-Sensitivity Sensing of Liquid Films in Microfluidic Channels with Optofluidic Microresonators, Michael Grad1, Chen Chan Tsai1, Mingbin Yu2, Dim Lee Kwong2, Chee Wei Wong1, Daniel Attinger1; 1Columbia Univ., USA, 2Inst. for Microelectronics, Singapore. We demonstrate integrated optical ring resonators as time-resolved sensors with 3.2e-5 refractive index unit sensitivity embedded in microfluidic channels. Furthermore, we report the chip-scale detection of segmented flow with different liquid-film thicknesses and capillary numbers.

CWJ2 • 5:15 p.m.Octave-Spanning Ti:sapphire Laser Locked to Carrier-Envelope-Offset Frequency Zero, Stefan Rausch1,2, Thomas Binhammer3, Anne Harth1,2, Uwe Morgner1,2,4; 1Inst. of Quantum Optics, Leibniz Univ. Hannover, Germany, 2Ctr. for Quantum Engi-neering and Space-Time Res. (QUEST), Germany, 3VENTEON Laser Technologies GmbH, Germany, 4Laser Zentrum Hannover, Germany. We present a Ti:sapphire based pulse train stabilized to carrier-envelope-offset frequency zero using an extended self-referencing technique. The excellent CEP lock is verified by recording the spectral interference of 1011 pulses in a second f-to-2f-interferometer.

CWK2 • 5:15 p.m.Lasing Oscillation in a Three-Dimensional Photonic Crystal Nanocavity with Quantum Dots, Aniwat Tandaechanurat, Satomi Ishida, Denis Guimard, Damien Bordel, Masahiro No-mura, Satoshi Iwamoto, Yasuhiko Arakawa; Inst. for Nano Quantum Information Electronics, Univ. of Tokyo, Japan. We successfully demonstrated lasing oscillation in a three-dimensional photonic crystal nanocavity with quantum dots. Increasing the number of stacked layers enhanced a cavity quality factor, leading to a significant reduction in the lasing threshold.

CWL2 • 5:15 p.m.Novel Multicore Fibers for Large-Mode-Areas and High Beam Quality, Moritz M. Vogel, Mar-wan Abdou-Ahmed, Thomas Rataj, Andreas Popp, Armin Austerschulte, Thomas Liebig, Andreas Voss, Thomas Graf; Inst. für Strahlwerkzeuge, Univ. of Stuttgart, Germany. A passive multicore fiber with a mode field area of 465 µm² at 1050 nm delivering virtually diffraction limited output beam quality and a few-mode multicore fiber are investigated and compared to suitable step-index fibers.

CWM3 • 5:15 p.m.Optofluidic Synthesis of Magnetic Micropar-ticles with Structural Colors, Junhoi Kim, Hyoki Kim, Wook Park, Younghoon Song, Sunghoon Kwon; Seoul Natl. Univ., Republic of Korea. We present optofluidic synthesis of magnetic micropar-ticles showing structural color property. We also demonstrate fabrication of complex magnetic microparticles having multiple subdomains with different color patterns.

CWJ3 • 5:30 p.m.Single-Shot Detection and on-Line Control of Carrier Phase Drift of Mid-IR Pulses, Cristian Manzoni, Michael Först, Henri Ehrke, Andrea Cav-alleri; Univ. of Hamburg, Germany. We introduce a new scheme for single-shot characterization of the absolute-phase jitter of mid-IR pulses. The system detects phase drifts of self-phase stabilized sources; a control scheme compensating long-term drifts is also demonstrated.

CWK3 • 5:30 p.m.Lasing Action of a Surface Emitting Organic Photonic Crystal Laser of Rectangular Lattice Fabricated by Double Nanoimprint Lithography Process, Sidney S. Yang, Chien-Liang Liu, Shih-I Chen; Natl. Tsing Hua Univ., Taiwan. A surface emitting organic thin-film band-edge blue laser of photonic crystals (PhCs) with rectangular lattice were fabricated by double nanoimprint lithography process. The dual-wavelength lasing characteris-tics, including lasing thresholds, polarization and far-field pattern, are presented.

CWL3 • 5:30 p.m.Nonlinear Frequency Generation of High-Power Polarisation Vortices in Optical Fibers, Christian Smith1, Peter Balling1, Poul Kristensen2, Siddharth Ramachandran3; 1Aarhus Univ., Denmark, 2OFS Fitel ApS, Denmark, 3Boston Univ., USA. We exploit stimulated-Raman-scattering to generate polarisa-tion-vortices over 3-Stokes-shifts (40-THz) with a specially-designed optical fiber. This illustrates the possibility of generating these beams, of immense recent interest, at any wavelength that nonlinear processes in glass allow.

CWM4 • 5:30 p.m.Optofluidic Dispersion Engineering of Photonic Crystal Waveguides, Alvaro Casas Bedoya, Peter Domachuk, Jason Ting, Christian Grillet, Christelle Monet, Snjezana Tomljenovic-Hanic, Michael W. Lee, Ross C. McPhedran, Benjamin J. Eggleton; CU-DOS, Univ. of Sydney, Australia. We use optofluidic infiltration to precisely and reversibly engineer the dispersion of a photonic crystal defect waveguide post-fabrication. The amount of fluid infiltrated into the photonic crystal microstructure strongly influences the waveguide dispersion.




C L E OQ E L S

Wednesday, M

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Q E L S

4:45 p.m.–6:30 p.m. QWE • Nonlinear Integrated Optics Roberto Morandotti; INRS-EMT, Canada, Presider

4:45 p.m.–6:30 p.m. CWN • Tunable Semiconductor Lasers Yoshiaki Nakano; Univ. of Tokyo, Japan, Presider

4:45 p.m.–6:30 p.m. QWF • Toward Three-Dimensional Metamaterials Mikhail Noginov; Norfolk State Univ., USA, Presider

QWE1 • 4:45 p.m.Net Parametric Gain in a High Index Doped Silica Waveguide, Alessia Pasquazi1, Yongwoo Park1, Jose Azaña1, François Légaré2, Brent Little3, Sai T. Chu3, Roberto Morandotti1, David Moss4; 1Ultrafast Optical Processing Group INRS-EMT, Canada, 2INRS-EMT, Canada, 3Infinera Corp., USA, 4CUDOS, School of Physics, Univ. of Sydney, Australia. We demonstrate C-band subpicosecond wavelength conversion over > 100nm, exploiting four wave mixing in a high index doped silica waveguide spiral of 45cm, showing a +16.5dB net gain for a 40W peak pump power.

CWN1 • 4:45 p.m.Towards on-Chip Tunable Nanolasers Based on Optomechanical Zipper Cavities, Raviv Perahia, Thiago P. M. Alegre, Justin D. Cohen, Oskar Painter; Caltech, USA. Work towards semiconductor nanolasers at 1.3µm wavelength in optomechani-cally coupled one dimensional photonic-crystal cavities is presented. Optical mode spectroscopy and on-chip tuning capability based on capacitive actuation is developed. Experimental and theoreti-cal results are presented.

QWF1 • 4:45 p.m. Invited Photonic Metamaterials Go Three-Dimensional, Martin Wegener; Inst. für Angewandte Physik und Inst. für Nanotechnologie, Karlsruhe Inst. of Technology, Germany. We review recent progress on three-dimensional metallic and/or dielectric nanostructures made using direct laser writing. Emphasis will be on gold-helix metamaterials as compact broadband circular polarizers, bi-chiral helical structures, and early three-dimensional carpet cloaks.

QWE2 • 5:00 p.m.Broadband Sum-Frequency Generation in AlGaAs Bragg Reflection Waveguides, Junbo Han, Payam Abolghasem, Bhavin J. Bijlani, Amr S. Helmy; Univ. of Toronto, Canada. Efficient continuous-wave sum-frequency generation with a bandwidth exceeding 60 nm was obtained in AlGaAs Bragg-reflection waveguide for type-II nonlinear interaction. Normalized conversion efficiency of 317 %W(-1)cm2 was estimated in a device with 2.2 mm length.

CWN2 • 5:00 p.m.Tunable Hollow Waveguide In-Plane Laser with 52-nm Tuning Range, Mukesh Kumar1, Chris Chase2, Vadim Karagodsky2, Takahiro Sakaguchi1, Fumio Koyama1, Connie J. Chang-Hasnain2; 1Tokyo Inst. of Technology, Japan, 2Univ. of California at Berkeley, USA. A novel hybrid-integrated in-plane tunable-laser based on HCG-hollow-waveguide is proposed. A semiconductor optical amplifier is directly coupled to a tunable-hollow-waveguide-Bragg-reflector. A giant tuning-range of 52-nm is demonstrated with a single tuning-parameter of variable air-core.

QWE3 • 5:15 p.m.Ultrafast Optical Pulse Compression on a Chip, Marco Peccianti1,2, Marcello Ferrera1, Luca Razzari1,3, Brent E. Little4, Sai T. Chu4, Roberto Mo-randotti1, David J. Moss5; 1INRS Énergie, Matériaux et Télécommunications, Canada, 2Res. Ctr. SOFT INFM-CNR, Italy, 3Dept. di Elettronica, Univ. di Pavia, Italy, 4Infinera Ltd., USA, 5CUDOS, School of Physics, Univ. of Sydney, Australia. we present the first integrated optical pulse compressor based on nonlinear chirp capable of operating on a sub-picosecond time scale. The device is based on an integrated 45cm long, high index doped silica glass waveguide.

CWN3 • 5:15 p.m.Acousto-Optically Tunable Extended Cavity Diode Laser, Vincent Crozatier1, Vianney Da-mon2, Ivan Lorgere2; 1Fastlite, France, 2Lab Aime Cotton, CNRS, France. In this new architecture of extended cavity diode laser, broadband tunability is provided by an acousto-optical tunable filter with a longitudinal interaction. The laser offers single mode operation, >100 nm accordability, and two-wavelength operation capability.

QWF2 • 5:15 p.m.Bi-Anisotropy of Optical Metamagnetics Stud-ied with Spectroscopic Ellipsometry, Vladimir P. Drachev1, Tom Tiwald2, Josh Borneman1, Shumin Xiao1, Alexander V. Kildishev1, Vladimir M. Shalaev1, Augustine Urbas3; 1Purdue Univ., USA, 2J.A. Woollam Co., Inc., USA, 3AFRL, USA. Sub-wavelength gratings of paired Ag strips are measured and analyzed using spectroscopic ellip-sometry, and show significant angular dependence of the electric and magnetic resonance properties, along with evidence of bi-anisotropy.

QWE4 • 5:30 p.m.Second Harmonic Generation in Gallium Phosphide Photonic Crystal Nanocavities with Ultralow CW Pump Power, Kelley Rivoire1, Ziliang Lin1, Fariba Hatami2, W. Ted Masselink2, Jelena Vuckovic1; 1Stanford Univ., USA, 2Humboldt Univ., Germany. Using photonic crystal nano-cavities fabricated in the semiconductor gallium phosphide, we demonstrate second harmonic generation with input continuous wave powers of nanowatts (at 1550 nm).

CWN4 • 5:30 p.m.High Power and Widely Tunable External Cavity Diode Laser with a Single-Angled-Facet Laser Diode, Kiyofumi Muro1, Yasutaka Shimada1, Ken Kitahara1, Tomohisa Endo1, Yuji Yamagata2, Yumi Yamada2, Tsuyoshi Fujimoto2; 1Chiba Univ., Japan, 2Optoenergy Inc., Japan. High power external cav-ity diode lasers were developed in the wavelength region of 1000nm by using singel-angled-facet laser diodes. 330mW output and 130nm tuning were achieved in the conventional Littman-Metcalf configuration.

QWF3 • 5:30 p.m.Strong Circular Dichroism from Twisted Split-Ring-Resonators, Manuel Decker1,2, Rongkuo Zhao3,4, Costas M. Soukoulis3,5, Stefan Linden1,2, Martin Wegener1,2; 1 Inst. für Angewandte Physik, Karlsruhe Inst. of Technology, Germany, 2Inst. für Nanotechnologie, Karlsruhe Inst. of Technology, Germany, 3Ames Lab and Dept. of Physics and Astronomy, Iowa State Univ., USA, 4Applied Optics Beijing Area Major Lab, Dept. of Physics, Beijing Normal Univ., China, 5Dept. of Materials Science and Technology, Res. Ctr. of Crete, Greece. We in-vestigate chiral photonic metamaterials composed of stacked layers of twisted split-ring-resonators. Our design allows for strong circular dichroism of up to 33% at optical frequencies. The experiments are in good agreement with theory.



C L E O


Q E L S

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Q E L S

4:45 p.m.–6:30 p.m. QWG • Ultrafast Processes in Condensed Matter Frank Jahnke; Univ. of Bremen, Germany, Presider

4:45 p.m.–6:30 p.m. CWO • THz Imaging Daniel Mittleman; Rice Univ., USA, Presider

4:45 p.m.–6:30 p.m. CWP • Interconnect Technologies Solomon Assefa; IBM T.J. Watson Res. Ctr., USA, Presider

4:45 p.m.–6:30 p.m. QWH • QELS Symposium on Quantum Repeaters and Networks: Quantum Repeater Components Christopher Monroe; Univ. of Maryland and JQI, USA, Presider

QWG1 • 4:45 p.m.Confined Excitons with Ultrafast Radiative Decay Time Less than 100 fs Enabling Survival at Room Temperature, Masayoshi Ichimiya1,2, Keita Mochizuki2, Masaaki Ashida2, Hideki Yasuda3, Hajime Ishihara3, Tadashi Itoh2; 1Dept. of Physics, Osaka Dental Univ., Japan, 2Dept. of Physical Sci-ence, Osaka Univ., Japan, 3Dept. of Physics and Elec-tronics, Osaka Prefecture Univ., Japan. Temperature dependence of degenerate four-wave mixing signal in high-quality CuCl thin films was investigated. We observed the signal of modes with large radia-tive width at high temperatures due to ultrafast radiative decay faster than dephasing.

CWO1 • 4:45 p.m.High-Speed Hand-Held Wide Aperture Time-Domain Terahertz Imaging System, David A. Zimdars, Greg Fichter, Chris Megdanoff, John Duquette, Magaret Murdock, Irl Duling, Jeff White, Steve Williamson; Picometrix, Inc., USA. A hand-held, high-speed time-domain terahertz (TD-THz) reflection line-scanner for non-destructive examination (NDE) is described. The imager can acquire video rate B-scans and acquire C-scans >15 times faster than a gantry.

CWP1 • 4:45 p.m. InvitedIntegration of Nano-Photonic Devices for CMOS Chip-to-Chip Optical I/O, Ian Young, Bruce Block, Miriam Reshotko, Peter Chang; Intel Corp., USA. A photonic CMOS process enables integration of electro-optical polymer modula-tors, silicon nitride waveguides and polycrystal-line germanium photodetectors in a CMOS logic process. CMOS compatible ring resonator modulators and Ge detectors both demonstrate 40 Gb/s performance.

QWH1 • 4:45 p.m. Invited Experimental Manipulation of Atoms and Photons and Its Applications, Jianwei Pan; Univ. Heidelberg, Germany. Abstract not available.

QWG2 • 5:00 p.m.Femtosecond X-Ray Powder Diffraction, Flavio Zamponi, Zunaira Ansari, Jens Dreyer, Michael Woerner, Thomas Elsaesser; Max-Born-Inst., Ger-many. Transient electronic charge density maps with 30 picometer spatial and 100 femtosecond temporal resolution gained from X-ray powder diffraction experiments unravel for the first time a concerted electron and proton transfer in hydrogen-bonded (NH4)2SO4 crystals.

CWO2 • 5:00 p.m.Terahertz Emission from Optical Fiber Tip and near-Field Microscope Applications, Minwoo Yi1, Kanghee Lee1, Jongseok Lim1, Jaewook Ahn1, S. H. Shin2, Jin-Dong Song2, Youngbin Hong3, Young-Dahl Jho3; 1KAIST, Republic of Korea, 2Korea Inst. of Science and Technology, Republic of Korea, 3Gwangju Inst. of Science and Technology, Republic of Korea. We devised and demonstrated terahertz emission from an optical fiber tip coated with InAs thin film illuminated by guided laser field and achieved λ/20 sub-wavelength imaging in an InAs-based transmissive near-field laser emission THz microscope.

QWG3 • 5:15 p.m. Invited Femtosecond Quantum Optics with Single-Elec-tron Systems, Alfred Leitenstorfer, Rudolf Bratsch-itsch; Univ. of Konstanz, Germany. Few-fermion dynamics in a single CdSe/ZnSe quantum dot after resonant excitation is investigated via femtosecond transmission spectroscopy. Optimized coupling via dielectric microcavities and plasmonic nano-antennas is discussed leading towards ultrafast nonlinear optics with single photons.

CWO3 • 5:15 p.m.Coherent Optical Computing for Terahertz Imaging, Kanghee Lee, Kyung Hwan Jin, Jong Chul Ye, Jaewook Ahn; KAIST, Republic of Korea. We devised and demonstrated coherent optical computing for single-point terahertz imagery, the physics of which is based on one-to-one mapping of spatial frequency components of an object to broadband terahertz spectrum.

CWP2 • 5:15 p.m.High-Bandwidth Optical MCM: FPGA with Optical I/O on Waveguide-Integrated SLC, Masao Tokunari, Jean Benoit Heroux, Shigeru Nakagawa; IBM Res. - Tokyo, Japan. We dem-onstrate an FPGA with 12-channel optical I/O on waveguide-integrated surface laminar circuit, highly-integrated optical multi-chip module. Each transmitter channel operates at data rate over 6 Gb/s.

QWH2 • 5:15 p.m. Invited Solid State Quantum Memories for Quantum Repeaters, Hugues de Riedmatten1, I. Usmani1, B. Lauritzen1, C. Clausen1, J. Minář1, N. Sangouard1, C. Simon1,2, A. Amari3, A. Walther3, S. Kröll3, M. Afzelius1, N. Gisin1; 1Univ. of Geneva, Switzerland, 2Univ. of Calgary, Canada, 3Dept. of Physics, Lund Inst. of Technology, Sweden. Quantum memories are necessary for the implementation of quantum networks and repeaters. Recent progress towards photonic quantum storage in solid state atomic ensembles using photon echo techniques will be presented.

CWO4 • 5:30 p.m.Sparse Terahertz Arrays with Adaptive Image Reconstruction, Zhuopeng Zhang, Takashi Buma; Univ. of Delaware, USA. We demonstrate sparse THz array imaging with an adaptive reconstruc-tion technique. Image artifacts are reduced by over 20dB with a 56 x 56 element array spanning a 76 x 76 mm aperture.

CWP3 • 5:30 p.m.Low Power Optical Interconnect at 10 Gbps with High Efficiency 1060nm VCSEL, Jean Benoit Héroux1, Masao Tokunari1, Keishi Takaki2, Shigeru Nakagawa1; 1IBM Res. - Tokyo, Japan, 2Photonic Devices Res. Ctr., Furukawa Electric Co., Japan. We developed a high speed, low power optical interconnect system using high efficiency 1060 nm VCSEL. Clear eye diagrams are recorded at 10 Gbps with lower than 2 mA bias and 150 mVp-p modulation voltage.




C L E O


CLEO: Applications J O I N T

Wednesday, M

ay 19

4:45 p.m.–6:30 p.m. CWQ • Harmonic Generation Shekhar Guha; AFRL, USA, Presider

4:45 p.m.–6:30 p.m. JWC • High-Field and High-Energy Density Science Craig Siders; Lawrence Livermore Natl. Lab, USA, Presider

4:45 p.m.–6:30 p.m. AWA • Novel Sensing Applications Xiaoshi Zhang; Kapteyn-Murnane Labs Inc., USA, Presider

AWA1 • 4:45 p.m. Invited Counterfeit Money Detection by Intrinsic Fluorescence Lifetime, Michael J. Levene, Thomas Chia; Yale Univ., USA. Genuine U.S. Federal Reserve Notes have a consistent, two-component intrinsic fluorescence lifetime. We used scanning two-photon laser excitation and the time-correlated single photon counting method to identify three different types of counterfeit U.S. paper money.

CWQ1 • 4:45 p.m.High Effciency Harmonic Generation in LiNbO3 Membranes, Alexander S. Solntsev1, Andrey A. Sukhorukov1, Dragomir N. Neshev1, Rumen Iliew1,2, Thomas Pertsch2, Yuri S. Kivshar1; 1Austra-lian Natl. Univ., Australia, 2Friedrich-Schiller-Univ. Jena, Germany. We reveal simultaneous phase- and group-velocity matching for frequency doubling of ultra-short pulses at telecom wavelengths in LiNbO3 membranes. Furthermore, we predict complete phase-matched cascaded third-harmonic generation for optimised membrane thickness.

JWC1 • 4:45 p.m. Tutorial High Energy Density Science with High Peak Power Light Sources, Todd Ditmire; Univ. of Texas at Austin, USA. High energy density (HED) science is a growing sub-field of plasma and con-densed matter physics. I will examine how recent technological developments in high peak power, petawatt-class lasers and x-ray FELs have impacted research in HED physics.

Todd Ditmire is Professor of Physics at the Uni-versity of Texas at Austin where he directs the Texas Center for High Intensity Laser Science a DOE NNSA Stewardship Science Academic Alli-ance Center of Excellence. His interests include studies of intense laser and x-ray pulse interac-tions with atomic clusters, the study of hot, dense plasma properties, and the laboratory simulation of astrophysical phenomena. His research also involves the development of ultra-high peak power lasers, which includes the Texas Petawatt laser at UT. Prof. Ditmire is a Fellow of the American Physical Society and serves on the Committee of Atomic, Molecular and Optical Physics of the National Academy of Sciences Board on Physics and Astronomy. Prof. Ditmire earned a bachelor’s degree from Harvard in 1991 in physics and art history and a PhD from the University of Califor-nia, Davis in 1995 from the Department of Applied Science in Livermore.

CWQ2 • 5:00 p.m.Naturally Phase Matched Second Harmonic Generation in a Whispering Gallery Mode Resonator, Josef Fuerst1,2, Dmitry Strekalov1,3, Dominique Elser1,2, Mikael Lassen1,4, Ulrik Lund Andersen1,4, Christoph Marquardt1,2, Gerd Leuchs1,2; 1Max-Planck-Inst. for the Science of Light, Germany, 2Inst. of Optics, Information and Photonics, Univ. Erlangen-Nuremberg, Germany, 3JPL, Caltech, USA, 4Dept. of Physics, Technical Univ. of Denmark, Denmark. We observed conversion efficiencies for second harmonic generation of 9% at 30µW pump power in LiNbO3, and self-limiting effects at high powers. The continuous-wave pump at a wavelength of 1064nm and its second-harmonic feature Q>107.

AWA2 • 5:15 p.m.Monolithical Integration of UV-Induced Optical Polymer Waveguides for Fluorescence Applications in Biological Sciences, Mauno Schelb1, Christoph Vannahme1, Alexander Welle1, Steven Lenhert2, Timo Mappes1; 1Karlsruhe Inst. of Technology, Germany, 2Florida State Univ., USA. UV-induced optical polymer waveguides and microfluidic channels were integrated on a single polymer chip as a platform for fluorescence excita-tion of biological samples. Fluorescence excitation could be demonstrated for labeled phospholipids and for stained cells.

CWQ3 • 5:15 p.m.Visible Harmonic Generation in CMOS-Compatible Integrated Photonic Devices, Jacob S. Levy, Mark A. Foster, Alexander L. Gaeta, Michal Lipson; Cornell Univ., USA. We observe continuous-wave second- and third-harmonic generation in silicon nitride ring resonators pumped in the C-band. The enhancement of the ring allows pump powers as low as 3 mW to generate detectable outputs.

AWA3 • 5:30 p.m.Sensitive Detection of Heavy Metals in Water Using Microchip Laser Induced Breakdown Spectroscopy, Zhijiang Chen, Yogesh Godwal, Lei Pan, Ilya Utkin, Ying Tsui, Robert Fedosejevs; Univ. of Alberta, Canada. A diode pumped Cr,Nd:YAG microchip laser with 4µJ pulse energy and multi-kilohertz repetition rate is demonstrated suitable for high sensitivity Laser-Induced Breakdown Spectroscopy detection of trace heavy met-als in water using an electroplating sampling technique.

CWQ4 • 5:30 p.m.40-W, CW, Cavity-Enhanced Second-Harmonic Generation with kHz Linewidth of an Injection-Locked Nd:YAG Laser, Noriaki Ohmae, Keigo Ta-kayama, Shigenori Moriwaki, Norikatsu Mio; Univ. of Tokyo, Japan. We demonstrated a 40-W, CW, cavity-enhanced second-harmonic generation (SHG) with kHz linewidth of an injection-locked Nd:YAG laser. The nonlinear characteristics of LiB3O5 were measured with a single-pass configu-ration to design a SHG cavity.



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CWJ • Carrier Envelope Stabilization and Few Cycle Generation II—Continued

CWK • Photonic Crystals III: Lasers—Continued

CWL • Fiber Modal Interactions—Continued

CWM • Optofluidics for Photonic Applications—Continued

CWJ4 • 5:45 p.m.New Approach to Achieving a Carrier-Envelope Phase-Locked Frequency Comb with 25-GHz Mode Spacing, Atsushi Ishizawa1, Tadashi Nishikawa1, Akira Mizutori2, Hidehiko Takara3, Shinichi Aozasa4, Atsushi Mori5, Hidetoshi Nakano1, Atsushi Takada6, Masafumi Koga2; 1NTT Basic Res. Labs, NTT Corp., Japan, 2Oita Univ., Japan, 3NTT Network Innovation Labs, NTT Corp., Japan, 4NTT Access Network Service Systems Labs, NTT Corp., Japan, 5NTT Photonics Labs, NTT Corp., Japan, 6Univ. of Tokushima, Japan. We propose an approach to achieving a carrier-envelope phase-locked frequency comb with 25-GHz mode spac-ing at 1.5 μm. We demonstrate octave-spanning supercontinuum generation with the widest mode spacing ever achieved using a CW laser diode.

CWK4 • 5:45 p.m.Photonic Crystal Nanobeam Lasers, Yinan Zhang1, Mughees Khan1, Yong Huang2, Jae-Hyun Ryou2, Parag Deotare1, Russell Dupuis2, Marko Lon-car1; 1Harvard Univ., USA, 2Georgia Tech, USA. We demonstrate room temperature photonic crystal lasers based on high-Q nanobeam cavities. L-L curve shows the lasing threshold of ~0.6mW and the spontaneous emission factor larger than 0.3.

CWL4 • 5:45 p.m.Third Harmonic Generation in Uniform Fibre Nanotapers via Intermodal Coupling, Martina Delgado-Pinar1, Yangfeng Li2, David M. Bird1, Tim A. Birks1, William J. Wadsworth1; 1Univ. of Bath, UK, 2College of Precision Instrument and Opto-electronics Engineering,Tianjin Univ., China. Third Harmonic Generation by means of intermodal coupling is experimentally characterized. UV radiation is generated from a pulsed 1064 laser in a 3 cm section of a taper of 492 nm in diameter.

CWM5 • 5:45 p.m.Reconfigurable Photonics from Microfluidic Waveguides, Aram J. Chung, Eunjung Jung, Da-vid Erickson; Cornell Univ., USA. Here we report the development of adaptive photonics using optofluidic waveguides. This work demonstrates the ability to couple light from a liquid-core wave-guide to solid-core waveguides taking advantage of both photonic modalities while facilitating reconfigurability.

CWJ5 • 6:00 p.m.A Frequency Stabilized Semiconductor Mode-Locked Laser with a Phase Modulator and an Intra-Cavity Etalon, Josue Davila-Rodriguez, Ibrahim Ozdur, Charles Williams, Peter J. Delfyett; CREOL, College of Optics and Photonics, Univ. of Central Florida, USA. A semiconductor laser is mode-locked by phase modulation at one-half the free spectral range of an intra-cavity etalon. The optical comb-lines are locked to the transmission peaks of the etalon using a Pound-Drever-Hall scheme.

CWK5 • 6:00 p.m.Square Lattice Photonic Crystal Point-Shifted D0 Nanocavity with Lowest-Order Whispering-Gallery Mode, Tsan-Wen Lu, Pin-Tso Lin, Kuan-Un Sio, Po-Tsung Lee; Dept. of Photonics and Inst. of Electro-Optical Engineering, Natl. Chiao Tung Univ., Taiwan. We propose a square photonic crystal point-shifted nanocavity, which sustains an ultra-small lowest-order whispering-gallery mode. Lasing actions with low threshold of 160 μW and changed polarization due to a nearby nano-particle are observed.

CWL5 • 6:00 p.m.Enhanced Resolution in Nonlinear Microscopy Using the LP02 Mode of an Optical Fiber, Chris-tian Smith1, Jeffrey W. Nicholson2, Peter Balling1, Sam Ghalmi2, Siddharth Ramachandran3; 1Dept. of Physics and Astronomy, Aarhus Univ., Denmark, 2OFS Labs, USA, 3Dept. of Electrical and Computer Engineering, Photonics Ctr., Boston Univ., USA. It is demonstrated that the lateral resolution of a non-linear scanning multi-photon microscope can be improved significantly by using the light from an LP02 mode instead of a Gaussian-like beam.

CWM6 • 6:00 p.m.Liquid Crystal Tunable Photonic Crystal Dye Laser, Thomas Buß, Mads B. Christiansen, Cameron L. C. Smith, Anders Kristensen; DTU Nanotech, Denmark. We present a dye-doped liquid crystal laser using a photonic crystal cav-ity. An applied electric field to the liquid crystal provides wavelength tunability. The photonic crystal enhances resonant interaction with the gain medium.

CWJ6 • 6:15 p.m.Synthesis of Attosecond Waveforms Using Raman-Generated Frequency Combs, Han-Sung Chan1,2, Zhi-Ming Hsieh3, Wei-Hong Liang1,2, Andy Kung2,4, Chao-Kuei Lee5, Ru-Pin Pan1, Lung-Han Peng3; 1Natl. Chiao Tung Univ., Taiwan, 2Academia Sinica, Taiwan, 3Natl. Taiwan Univ., Taiwan, 4Natl. Tsing Hua Univ., Taiwan, 5Natl. Sun-Yat-Sen Univ., Taiwan. Attosecond optical waveforms of arbi-trary shape are synthesized and verified using a Raman-generated comb of frequencies that have a controlled and stable carrier-envelope phase.

CWK6 • 6:15 p.m.Hybrid Diode-Microresonator Laser, Tianhe Yang1, Matthew Tomes1, Carl C. Aleksoff2, Tal Carmon1; 1Univ. of Michigan, USA, 2Coherix Corp., USA. We present a new technology allowing on-chip integration of a micro-resonator and its energy source for fundamental studies and com-mercial applications. As a proof-of-concept we demonstrate four-wave mixing and Raman lines.

CWL6 • 6:15 p.m.Long-Period Fiber Gratings for Transverse Mode Conversion Induced by the Optical Kerr Effect, Niklas Andermahr1,2, Carsten Fallnich1; 1Inst. für Angewandte Physik, Westfälische Wilhelms-Univ., Germany, 2Laser Zentrum Hannover, Germany. We propose and demonstrate transverse mode conversion by an optically induced long-period fiber grating. A full mode conversion is shown in numerical simulations. Experimental results with a conversion efficiency of about 50% are firstly presented.

CWM7 • 6:15 p.m.Optically Generated Electric Fields by Lithium Niobate Nanowires, Jae-Woo Choi1,2, Rachel Grange1, Chia-Lung Hsieh1,2, Ye Pu1, Arnaud Magrez1, Rita Smajda1, Laszlo Forro1, Demetri Psaltis1; 1École Polytechnique Fédérale de Lausanne, Switzerland, 2Caltech, USA. We demonstrate that lithium niobate nanowires generate electric fields under 514 nm continuous wave laser illumination. Birefringent media are used to visualize the gener-ated fields in a microfluidic channel. Input laser polarization dependence is shown.

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C L E OQ E L S

Wednesday, M

ay 19

Q E L S

QWE • Nonlinear Integrated Optics—Continued

CWN • Tunable Semiconductor Lasers—Continued

QWF • Toward Three-Dimensional Metamaterials—Continued

QWE5 • 5:45 p.m. Invited Highly Efficient Four Wave Mixing in InGaP Photonic Crystal Waveguides, Isabelle Cestier1, Vardit Eckhouse1, Gadi Eisenstein1, Sylvain Com-brié2, Pierre Colman2, Alfredo De Rossi2; 1Technion – Israel Inst. of Technology, Israel, 2Thales Res. and Development, France. We report highly efficient four wave mixing in InGaP photonic crystal waveguides. Conversion efficiencies of -52.5dB for two ~1mW CW signals, and -38.8dB for a 1.4mW CW probe and a 14.4mW pulsed pump were demonstrated.

CWN5 • 5:45 p.m.Self-Configuring Athermal Tunable DS-DBR Laser for Passive Optical Networks, S H Lee1, A. Wonfor1, R. V. Penty1, I. H. White1, G. Busico2, R. Cush2, M. Wale2; 1Univ. of Cambridge, UK, 2Oclaro Inc., UK. We demonstrate a self-tuning athermal laser suitable for PON applications. The cooler-less laser operates up to 70°C with a wavelength accuracy of better than 0.1nm over a 36nm range using an open loop control circuit.

QWF4 • 5:45 p.m.Compensation of Group Delay with Tunable Slow/Fast Light Form-Birefringent Metamate-rial Structures, Weiguo Yang1, John D. Graham1, Robert P. Ingel2, Michael A. Fiddy2; 1Western Carolina Univ., USA, 2Univ. of North Carolina at Charlotte, USA. We demonstrate the compensation of slow light by tunable slow/fast light structure made of form-birefringent metamaterial struc-tures. Employing full compensation, the slow light structure can effectively be made to disappear over a significant frequency range.

CWN6 • 6:00 p.m.Nonlinear Spatio-Temporal Dynamics of Optically-Injected Three-Section Tunable DBR Laser, Dmitry Labukhin, Christopher A. Stolz, Nickolay Zakhleniuk, Rodney Loudon, Michael J. Adams; Univ. of Essex, UK. The travelling-wave method was used to investigate nonlinear spatio-temporal dynamics of a tunable laser under both weak and strong external optical injection. The results suggest effective methods of controlling laser dynamics in network applications.

QWF5 • 6:00 p.m.Hybridization of the Negative Index Response by Resonant Coupling to a Dipole Absorber Inside a Metamaterial, Svyatoslav Smolev1, Zahyun Ku1, Steven R. J. Brueck1, Igal Brener2, Michael Sinclair2, Gregory Ten-Eyck2, W. Langston2, L. Basilio2; 1 Ctr. for High Technology Materials, Univ. of New Mexico, USA, 2Sandia Natl. Labs, USA. We demonstrate a resonant coupling and hybridization between the structural resonance in the permeability of a fishnet and a material resonance in the dielectric spacer layer. Experimental data shows a good agreement with theory.

QWE6 • 6:15 p.m.Spectral Phase Clamping in Waveguide Ar-rays, Qing Chao1,2, Darren Hudson2,3,4, Nathan J. Kutz5, Demetrios N. Christodoulides6, Roberto Morandotti7, Steven Cundiff1,2,3; 1Dept. of Electri-cal and Computer Engineering, Univ. of Colorado, USA, 2JILA, NIST, USA, 3Dept. of Physics, Univ. of Colorado, USA, 4Univ. of Otago, New Zealand, 5Dept. of Applied Mathematics, Univ. of Washing-ton, USA, 6Univ. of Central Florida, USA, 7Univ. du Quebec, Canada. We report spectral phase clamping of femtosecond pulses propagating in a waveguide array. The waveguide sets the spectral phase of input pulses to a fixed value, regardless of the input chirp.

CWN7 • 6:15 p.m.Single Ring Tunable Laser Based on Two-Section Active Vertical Coupler, Ruiying Zhang1,2, Zhong Ren2, Siyuan Yu2, Jianrong Dong1; 1Suzhou Inst. of Nano-Tech and Nano-Bionics, Chinese Acad. of Sciences, China, 2Ctr. for Communications Res., Dept. of Electrical and Electronic Engineering, Univ. of Bristol, UK. Flexible coupled single ring tunable laser is originally demonstrated. The threshold current and free spectrum range are sharply tuned when coupling current changing from 6mA to 20mA. Meanwhile, lasing wavelength is dynami-cally tuned also.

QWF6 • 6:15 p.m.Electrically Tunable Thermal-Infrared Metama-terials, Xiaoyu Miao, Brandon Passmore, Aaron Gin, William Langston, Eric Shaner, Igal Brener; Sandia Natl. Labs, USA. We experimentally dem-onstrate that the resonance of a thermal-infrared metamaterial on a semiconductor substrate can be shifted by the substrate doping. We further study the electrical tuning of metamaterial resonance via finite integral time-domain simulation.

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C L E O


Q E L S

Wed

nesd

ay, M

ay 1

9

Q E L S

QWG • Ultrafast Processes in Condensed Matter—Continued

CWO • THz Imaging—Continued CWP • Interconnect Technologies—Continued

QWH • QELS Symposium on Quantum Repeaters and Networks: Quantum Repeater Components—Continued

QWG4 • 5:45 p.m.Femtosecond g(4) Measurement by HBT Inter-ferometry of an Upconversion Based Autocor-relation, Alex Hayat, Amir Nevet, Meir Orenstein; Technion – Israel Inst. of Technology, Israel. We propose and experimentally realize a compact semiconductor-based scheme for a femtosecond time-scale g(4) measurement, based on a start-stop HBT interferometry of autocorrelation. The autocorrelation is performed by upconversion in a semiconductor quantum well structure.

CWO5 • 5:45 p.m.THz Fiber-Based Swept-Source Imaging Radar, Tzu-Fang Tseng1, Yu-Wei Huang1, Chung-Chiu Kuo1, Yu-Jing Huang2, Chi-Kuang Sun1,3; 1Dept. of Electrical Engineering and Graduate Inst. of Photon-ics and Optoelectronics, Natl. Taiwan Univ., Taiwan, 2Inst. of Astronomy and Astrophysics, Academia Sinica, Taiwan, 3Res. Ctr. for Applied Sciences, Academia Sinica, Taiwan. We demonstrate an all-THz fiber-based swept-source imaging radar system. Our experiment shows that this radar can be used in real time to nondestructively detect and locate the concealed living objects with high stability and sensitivity.

CWP4 • 5:45 p.m.Al2O3:Nd3+ Waveguide Amplifiers for Use in Op-tical Backplanes, Jing Yang1, Feridun Ay1, Tobias Lamprecht2, Folkert Horst2, Bert J. Offrein2, Alfred Driessen1, Kerstin Wörhoff1, Markus Pollnau1; 1Univ. of Twente, Netherlands, 2IBM Res. GmbH, Zurich Res. Lab, Switzerland. Al2O3:Nd3+ channel waveguide amplifiers with various lengths and Nd3+ concentrations were fabricated. Internal net gain at 845-940 nm was investigated and a maxi-mum 3dB gain at 880 nm was obtained.

QWH3 • 5:45 p.m.Coherent Optical Memory with GHz Band-width, Klaus F. Reim1, Joshua Nunn1, Virginia O. Lorenz2, Ben J. Sussman3, K. C. Lee1, Nathan K. Langford1, Dieter Jaksch1, Ian A. Walmsley1; 1Univ. of Oxford, UK, 2Dept. of Physics, Univ. of Delaware, USA, 3Natl. Res. Council Canada, Canada. We demonstrate the coherent storage and retrieval of sub-nanosecond low-intensity light pulses with spectral bandwidths exceeding 1GHz in cesium vapor, using the novel, far off-resonant two-photon Raman memory protocol.

QWG5 • 6:00 p.m.A Femtosecond Multi-Terahertz View of the Phonon and Quasiparticle Dynamics in Super-conducting YBCO, Michael Porer1, Alexej Pash-kin1, Markus Beyer1, Jakob Hees1, Kyungwan Kim2, Christian Bernhard2, Xin Yao3, Yoram Dagan4, Rudi Hackl5, Andreas Erb5, Jure Demsar1,6, Alfred Leiten-storfer1, Rupert Huber1; 1Dept. of Physics and Ctr. for Applied Photonics, Univ. of Konstanz, Germany, 2Univ. of Fribourg, Switzerland, 3Dept. of Physics, Shanghai Jiao Tong Univ., China, 4Dept. of Phys-ics, Tel Aviv Univ., Israel, 5Walther-Meissner-Inst., Germany, 6Complex Matter Dept., Josef Stefan Inst., Slovenia. Ultrafast probing of the mid-infrared dielectric response of YBCO after 12-fs optical excitation allows us to simultaneously trace quasi-particle excitations and specific lattice modes. The results indicate selective electron-phonon coupling and strong lattice anharmonicities.

CWO6 • 6:00 p.m.Near-Field Microscopy of Thermal Radiation, Yusuke Kajihara1,2, Susumu Komiyama1, Keishi Kosaka1; 1Univ. of Tokyo, Japan, 2JST, Japan. We have developed a scattering-type scanning near-field optical microscope with a charge sensitive infrared phototransistor. Near-field images of spontaneously emitted thermal radiation were clearly obtained and the spatial resolution was better than 300 nm.

CWP5 • 6:00 p.m.Thin-Film Lasers Embedded in Passively Aligned SU-8 Waveguides on SiO2/Si, Sabarni Palit1, Jeremy Kirch2, Luke Mawst2, Nan M. Jokerst1; 1Duke Univ., USA, 2Univ. of Wisconsin at Madison, USA. A thin film GaAs based edge emitting laser is bonded to Silicon, with one facet embedded in a passively aligned polymer waveguide. Jth = 260 A/cm2 at λ=1002.5 nm is achieved for this integrated system.

QWH4 • 6:00 p.m.Fundamental Bounds and Performance Tests for the Storage or Transmission of Quantum Light, Hauke Häseler, Nathan Killoran, Norbert Lütkenhaus; Inst. for Quantum Computing, Univ. of Waterloo, Canada. We derive benchmarks for the quantum storage or transmission of light which are optimal while requiring minimal experimental resources. Quantitative statements on quantum device performance are derived by extending the method using entanglement measures.

QWG6 • 6:15 p.m.Two-Photon Photoemission Can Map Femto-second-Lived Unoccupied Bulk States, Jerry I. Dadap1, Zhaofeng Hao1, Kevin Knox1, Mehmet Yilmaz1, Nader Zaki1, Richard M. Osgood1, Peter D. Johnson2; 1Columbia Univ., USA, 2Brookhaven Natl. Lab, USA. We use a tunable 100-fs UV source to demonstrate angle-resolved two-photon photo-emission band mapping of bound but unoccupied bulk bands, viz. Cu sp-band. The strong optical pumping overcomes the femtosecond lifetime of this bulk feature.

CWO7 • 6:15 p.m.A Pulsed THz Imaging System with a Line Focus and a Balanced 1-D Detection Scheme with Two Industrial CCD Line Cameras, Christian S. Wiegand1, Michael Herrmann2, Sebastian Bachtler1, Daniel Molter2, Jens Klier2, Joachim Jonuscheit2, René Beigang1; 1 Dept. of Physics, Univ. of Kaiserslautern, Germany, 2Fraunhofer Inst. for Physical Measurement Techniques IPM, Germany. We present a pulsed terahertz imaging system with a line focus intended to speed up measurements. A balanced 1-D detection scheme working with two industrial line cameras is used. The instrumental characteristics are determined.

CWP6 • 6:15 p.m.Novel Micro-Heater Structure for Low-Power and Fast Photonic Reconfiguration, Amir Hossein Atabaki, Ali A. Eftekhar, Siva Yeg-nanarayanan, Ali Adibi; Georgia Tech, USA. A novel microheater structure integrated over small microdisks in silicon-on-insulator is proposed with less than 100 nanosecond reconfiguration time using pulsed-excitation. Power consump-tion of the devices are shown to be 40% less than conventional microheaters.

QWH5 • 6:15 p.m.An Electrically Driven Entangled Light Source, C. L. Salter1,2, R. M. Stevenson1, I. Farrer2, C. A. Nicoll2, D. A. Ritchie2, A. J. Shields1; 1Toshiba Res. Europe Ltd., UK, 2Univ. of Cambridge, UK. We demonstrate electrically-driven entangled photon generation using a semiconductor quantum dot embedded in a light emitting diode structure. The entanglement is shown to be of sufficient fidelity for applications such as quantum key distribution.

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C L E O


CLEO: Applications J O I N T

Wednesday, M

ay 19

CWQ • Harmonic Generation—Continued

JWC • High-Field and High-Energy Density Science—Continued‚

AWA • Novel Sensing Applications—Continued

AWA4 • 5:45 p.m.Enhanced Sensitivity Using Liquid Crystals for Optical Fiber Based Localized Surface Plasmon Resonance Sensor, Yongbin Lin, Yang Zou, Dan Ke, Jun Namkung, Robert G. Lindquist; Univ. of Alabama at Huntsville, USA. Subwavelength gold nanoparticles array were fabricated on optical fibers tip with sensitivity of 195nm/RIU has been demonstrated. Nemetic liquid crystal has been used for enhancing sensitivity of LSPR-based detection of binding events.

CWQ5 • 5:45 p.m.High-Energy, High-Efficiency Second-Har-monic Generation from a Nd-Doped Laser with High-Quality CsB3O5 Crystal, Masayuki Suzuki1, Hiromitsu Kiriyama1, Yoshiki Nakai1, Hajime Okada1, Izuru Daito1, Paul R. Bolton1, Hiroyuki Daido1, Kiminori Kondo1, Shunichi Kawanishi1, Yoshio Kagebayashi2, Toshio Yokota2; 1Photo-Medical Res. Ctr., JAEA, Japan, 2Lamp Co. Technology and Engineering Div., R&D Ctr., Ushio Inc., Japan. Frequency doubling of high-energy Nd-doped laser emission yields harmonically converted laser energy (532-nm) of 1.2-J with 60 % conversion efficiency using a high optical quality top-seeded solution growth CsB3O5crystal.

JWC2 • 5:45 p.m.Surface Energy Transport Following Relativistic Laser-Solid Interaction, Hans Langhoff1, Ben-jamin Bowes1, Bixue Hou2, John Nees2, Yasuhiko Sentoku3, Michael Downer1; 1Univ. of Texas at Austin, USA, 2Univ. of Michigan, USA, 3Univ. of Nevada at Reno, USA. After a ~1-micron Al target spot is excited at 3e18 W/cm2, a delayed probe detects isotropic surface heating out to 12 μm ra-dius. Analysis shows runaway electrons and strong magnetic fields govern fs surface heating.

AWA5 • 6:00 p.m.Sensing Characteristics of Chemical Agents by Using Liquid Crystal-Based Chemical and Bio-logical Sensors, Jun Namkung, Yang Zou, Dan Ke, Yongbin Lin, Robert G. Lindquist; Univ. of Alabama at Huntsville, USA. This paper reports the design of a microstructure comprising an interdigitated capacitance structure for the detection of vapor-phase analytes based on nematic liquid crystal sensor and is demonstrated by the optical and capacitive techniques.

CWQ6 • 6:00 p.m.Domain Inversion with 0.8μm Period by Using a Conductive AFM Tip and Its Application to QPM-SHG Devices, Makoto Minakata1, Har-uyuki Awano1, Motohiro Ohtuka2, Futoshi Iwata1, Tetsuo Taniuchi3; 1Shizuoka Univ., Japan, 2 Faculty of Engineering, Shizuoka Univ., Japan, 3Tohoku Univ., Japan. We demonstrate newly developed domain inversion techniques using the improved AFM with a wide-scan-area and a thin terrace-like LiNbO3 substrate. The period with with less than 0.8μm is obtained. Novel SHG blue lasers are demonstrated.

JWC3 • 6:00 p.m.Electron Structure of Non-Equilibrium Warm Dense Copper, Byoung-ick Cho1, Phillip A. Hei-mann1, Kyle Engelhorn1,2, Jun Feng1, Hae Ja Lee3, Christopher P. Weber4, Roger W. Falcone1,2; 1Law-rence Berkeley Natl. Lab, USA, 2Univ. of California at Berkeley, USA, 3SLAC Natl. Accelerator Lab, USA, 4Santa Clara Univ., USA. Evolution of superheated electron-hole plasma in the warm dense copper is investigated using time resolved X-ray absorption technique. Experimental data indicate a strong electron-phonon non-equilibrium state and it is described with two-temperature model.

AWA6 • 6:15 p.m.Enhanced Chemical and Biological Sensor Based on Liquid Crystal Using a Bias Electric Field, Yang Zou, Jun Namkung, Yongbin Lin, Dan Ke, Robert Lindquist; Univ. of Alabama at Hunts-ville, USA. With a suitable bias electrical field, the sensitivity, response speed and signal strength of LC based optical sensor can be improved greatly. The field can enhance the optical anisotropy of LC sensing for binding event.

CWQ7 • 6:15 p.m.55%-Efficient, 13-W, Single-Pass SHG of a CW Yb-Fiber Laser in a Double-Crystal Scheme, Goutam K. Samanta1, S. Chaitanya Kumar1, Kavita Devi1, Majid Ebrahim-Zadeh1,2; 1ICFO, Spain, 2ICREA, Spain. We report a 13-W, single-frequency, cw green source at 532nm in a TEM00 spatial profile based on simple single-pass SHG of a fiber laser with conversion efficiency as high as 55% using a double-crystal scheme.

JWC4 • 6:15 p.m.High Harmonic Generation from Solid Targets at High Repetition Rate, James H. Easter1, Aghapi G. Mordovanakis2, Bixue Hou1, Gérard Mourou3, John A. Nees1, Karl Krushelnick1; 1Ctr. for Ultrafast Optical Science, Univ. of Michigan, USA, 2Dept. of Physics, Univ. of Toronto, Canada, 3Inst. de la Lumière Extrême, ENSTA, École Polytechnique, CNRS, France. Harmonics up to the 15th order are produced from solid targets using 3mJ, 30fs pulses focused to a spot size of 1.7μm and 3x1018 W/cm2. Combined conversion efficiency to the highest harmonics is >10-5.

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