AGSM光束的聚焦  

Focusing of twisted anisotropic Gaussian-Schell model beams

作　　者：彭愿洁[1] 吕百达[1] 

机构地区：[1]四川大学激光物理与化学研究所,成都610064

出　　处：《激光技术》2004年第3期289-292,295,共5页Laser Technology

摘　　要：基于有扭曲的各向异性高斯 谢尔模型 (AGSM)光束二阶矩矩阵的传输公式 ,研究了AGSM光束通过透镜的聚焦。作了详细的数值计算 ,说明聚焦AGSM光束的传输特性 ,包括光束参数和横向光强的变化 ,特别是扭曲项和空间相关长度对聚焦特性的影响。Based on the propagation law of the second-order moments matrix,the focusing of twisted anisotropic Gaussian-Schell model (AGSM) beams through a lens is studied.Detailed numerical results are presented to illustrate the propagation behavior of focused AGSM beams,including the evolution of beam parameters and the transversal intensity.In particular,the influence of twist term and spatial correlation length on their focusing properties is analyzed.

关 键 词：AGSM光束 二阶矩矩阵 聚焦 扭曲 空间相关长度 

分 类 号：O437[机械工程—光学工程]