Report copyright - Optics for Engineers Chapter 9...Gaussian Beam Parameters Beam Radius, w w2 = 2b0 k b0 = ˇw2 ˇd2 4 e k x2+y2 = 1 2q = e x 2+y2 w2 Curvature (Prev. Pg.) ejk x2+y2 < 1 2q = e jkx 2+y2
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