高斯光束在受限空间滤波器中传输的快速分析  

Fast Analysis of Gaussian Beam Propagation in Apertured Spatial Filter

作　　者：刘红婕[1] 景峰[1] 赵道木[2] 朱启华[1] 张小民[1] 魏晓峰[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,绵阳621900 [2]浙江大学物理系,杭州310027

出　　处：《光学与光电技术》2004年第3期21-24,共4页Optics & Optoelectronic Technology

摘　　要：根据矩形函数可以展开为有限复高斯函数之和的方法,从柯林斯衍射积分公式出发,对高斯光束通过受限空间滤波器传输特性进行分析,得到了相应的近似解析式。利用 Matlab 对其解析式进行数值模拟,得出一组直观的结果。通过比较这些结果可以看出透镜的有限尺寸对光束传输的影响,以及空间滤波器的滤波小孔在传输中具有明显作用。Based on the method that a rectangular function can be expanded into a sum of complex Gaussian functions with finite numbers, the propagation characteristics of a Gaussian beam passing through apertured spatial filter systems are analysed and the corresponding analytical formulae are obtained respectively. By using the numerical method of Matlab, the analytical formulae are numerically simulated and the results can be got from the simulated figure. Compared with the result, the effect of the different aperture sizes on the Gaussian beam propagation characteristics is not neglected.

关 键 词：衍射积分 空间滤波器 光阑 光束传输 

分 类 号：TN241[电子电信—物理电子学]