Article ID Journal Published Year Pages File Type
9785646 Optics Communications 2005 8 Pages PDF
Abstract
Based on the generalized Huygens-Fresnel diffraction integral the expression of the focused hyperbolic-cosine-Gaussian (ChG) beams is derived for any transverse plane in the focal region. The properties of the focused ChG beams and the focal shift are studied, and their dependence on the Fresnel number and the decentered parameter β are illustrated with detailed numerical calculations.
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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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Focusing properties and focal shift in hyperbolic-cosine-Gaussian beams
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