Propagation of elliptical cosh-Gaussian beams and off-axial elliptical cosh-Gaussian beams in apertured optical systems |
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Authors: | X Du D Zhao |
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Institution: | (1) Department of Physics, Zhejiang University, Hangzhou, 310027, P.R. China |
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Abstract: | Based on the fact that a hard-edged elliptical aperture can be expanded approximately as a finite sum of complex Gaussian
functions in tensor form, an analytical propagation expression for an elliptical cosh-Gaussian beam (EChGB) truncated by an
elliptical aperture and passing through an axially nonsymmetrical optical system is obtained by use of vector integration.
Furthermore, the analytical propagation expression for a truncated off-axial EChGB is derived as an application example. Some
numerical simulations are given to illustrate the propagation properties of EChGBs and off-axial EChGBs passing through a
free space with an elliptical aperture.
PACS 41.85.Ew; 42.60.Jf; 42.25.Bs |
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Keywords: | |
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