Transformation and spatial shaping of partially coherent cosh-Gaussian beams through an astigmatic lens |
| |
Authors: | Changwei Li |
| |
Affiliation: | Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China |
| |
Abstract: | 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. |
| |
Keywords: | Partially coherent cosh-Gaussian (ChG) beam Spatial beam shaping Astigmatic lens |
本文献已被 ScienceDirect 等数据库收录! |
|