厄米-高斯光束通过含硬边光阑光学系统束宽传输近似解析方程  

Approximate analytical beam width propagauon equation of Hermite-Gaussian beams through an optical system with an aperture

作　　者：刘雅静[1] 黄太星[2] 季小玲[2] 

机构地区：[1]中国民航飞行学院计算机学院,四川广汉618307 [2]四川师范大学物理系,四川成都610066

出　　处：《激光杂志》2007年第1期64-65,共2页Laser Journal

基　　金：四川省教育厅自然科学基金资助(NO2002A089)。

摘　　要：本文对厄米-高斯光束通过含光阑系统的聚焦特性作了详细研究。采用将硬边光阑窗口函数展开为有限个复高斯函数之和的方法,推导出了由环围功率法定义的束宽传输的近似解析方程,并用数值计算例研究了光学系统和光束参数对光束聚焦特性的影响。The focusing property of Hermite - Gaussian beams passing through an optical system with an aperture is studied in detail. The approximate analytical propagation equation of beam width definited by Green - Hall method is derived by means of expansion of the hard - edged aperture function into a finite sum of complex Gaussian functions. The influence of the optical system and beam parameters on the focusing property of beams is also studied with numerical examples.

关 键 词：束宽传输近似解析方程 环围功率法 复高斯函数展开法 光阑 

分 类 号：O435[机械工程—光学工程]