Highlights
• high-performance analysis of complex optical systems• full vectorial analysis of gratings by using rigorous algorithm (FMM)
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Specification: Light Source
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Parameter Description / Value & Unittype plane wavewavelengths 463 nm, 496 nm, 535 nmpolarization linear in x-direction (0°)
here
Specification: Apertures
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here
here
Parameter Description / Value & Unitwidth of entrance aperture 500 µmwidth of detector aperture 649 µm
Specification: Parabolic Mirrors
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Parameter Description / Value & Unittype parabolic mirrormaterial ideal high-reflective materialfocal length 100 mmdiameter 20 mmtilt angle 5°reflectance 100%
here
Specification: Grating
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Parameter Description / Value & Unitgrating period 833 nmgrating height 282.4 nm (optimized for -1st order efficiency)blaze angle 18.7°grating material silver (Ag)substrate material silver (Ag)
here
gratingheight
grating periodblaze angle
Specification: Detectors
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b
Position Modeling Technique Detector / Analyzerfull system
3D ray tracing 3D ray tracing system visualization
a Fourier modal method rigorous diffraction efficiency calculationb field tracing 2D intensity (real color view)
a
Result: 3D Ray Tracing
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source screen gratingdetectoraperture
parabolicmirror 1
entrance aperture
parabolicmirror 2
Result: Grating Diffraction Efficiency
grating efficiency for 1st diffraction order:
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Result: Grating Diffraction Efficiency
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463 nm: 496 nm: 535 nm:
intensity variations caused by different diffraction efficiency
Document & Technical Info
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code MONO.0002version of document 1.0
title Czerny-Turner Monochromator − Analysis of Diffraction Efficiency
category Optical Metrologycreated by Rui Shi (LightTrans)used VL version 7.0.0.29
Specifications of PC Used for SimulationProcessor i7-4700MQ (1 CPU cores)RAM 16 GBOperating System Windows 8