高斯光束通过两种球差透镜的聚焦特性比较  

Comparison of focusing properties of Gaussian beams passing through two kinds of spherically aberrated lenses

作　　者：季小玲[1] 吕百达[2] 

机构地区：[1]四川师范大学电子工程学院,成都610066 [2]四川大学激光物理与化学研究所,成都610064

出　　处：《激光技术》2002年第3期231-233,共3页Laser Technology

基　　金：激光技术国家重点实验室 (华中科技大学 );重庆师范学院科研基金资金项目

摘　　要：通过研究 ,比较了高斯光束通过两种不同球差透镜的聚焦特性。研究表明 ,高斯光束通过球差透镜的聚焦特性由球差透镜的类型、球差大小和光束的菲涅耳数共同决定。The focusing properties of Gaussian beams passing through two types of spherically aberrated lenses are studied and compared.It is show that the focusing properties depend on the type of the spherically aberrated lenses,the spherical aberration coefficient and Fresnel number.There are different conditions for different spherically aberrated lenses to achieve the focus without focal shift or beyond the geometrical focal point of the lens.

关 键 词：球差 聚焦特性 高斯光束 

分 类 号：O435[机械工程—光学工程]