Transformation and spatial shaping of partially coherent cosh-Gaussian beams through an astigmatic lens

被引：5
|
作者：
Li, Changwei [1 ]
Lue, Baida [1 ]
机构：
[1] Sichuan Univ, Inst Laser Phys & Chem, Chengdu 610064, Peoples R China
来源：
OPTIK | 2009年 / 120卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Partially coherent cosh-Gaussian (ChG) beam; Spatial beam shaping; Astigmatic lens;
D O I：
10.1016/j.ijleo.2007.09.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the propagation law of partially coherent beams, the closed-form propagation expression for partially coherent cosh-Gaussian (ChG) beams through an astigmatic lens is derived. The transformation and spatial shaping of partially coherent ChG beams through the astigmatic lens are studied and illustrated by numerical examples. It is shown that a suitable choice of the spatial coherence parameter and/or astigmatic coefficient, different beam profiles, such as Gaussian-like, flat-topped and bottle beam profiles, and beam profile with a central dip, at the geometric focal plane and at a certain plane are realizable. (C) 2007 Elsevier GmbH. All rights reserved.
引用
收藏
页码：374 / 378
页数：5
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