Propagation of Hermite-cosh-Gaussian beams in apertured fractional Fourier transforming systems

被引：43

作者：

Zhao, DM ^{[1
]}

Mao, H

Liu, H

Wang, SM

Jing, F

Wei, XF

机构：

[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

[2] CAEP, Res Ctr Laser Fus, Mianyang 621900, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2004年 / 236卷 / 4-6期

基金：

中国国家自然科学基金;

关键词：

fractional Fourier transformation; Hennite-cosh-Gaussian beam; aperture; optical system; diffraction integral;

D O I：

10.1016/j.optcom.2004.03.047

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The apertured fractional Fourier transform (FRFT) system is introduced and applied to treat the propagation of Hermite-cosh-Gaussian beams. Based on the fact that a hard aperture function can be expanded into a finite sum of complex Gaussian functions, the approximate analytical expressions for the output field distribution of a Hermite-cosh-Gaussian beam through apertured FRFT systems are derived and compared with those obtained from diffraction integral formulae by numerical simulations. It is shown that our method can significantly improve the numerical calculation efficiency. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：225 / 235

页数：11

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