Hollow elliptical Gaussian beam and its propagation through aligned and misaligned paraxial optical systems

被引:113
作者
Cai, YJ [1 ]
Lin, Q [1 ]
机构
[1] Zhejiang Univ, Inst Opt, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
关键词
D O I
10.1364/JOSAA.21.001058
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new mathematical model called hollow elliptical Gaussian beam (HEGB) is proposed to describe a dark-hollow laser beam with noncircular symmetry in terms of a tenser method. The HEGB can be expressed as a superposition of a series of elliptical Hermite-Gaussian modes. By using the generalized diffraction integral formulas for light passing through paraxial optical systems, analytical propagation formulas for HEGBs passing through paraxial aligned and misaligned optical systems are obtained through vector integration. As examples of applications, evolution properties of the intensity distribution of HEGBs in free-space propagation were studied. Propagation properties of HEGBs through a misaligned thin lens were also studied. The HEGB provides a convenient way to describe elliptical dark-hollow laser beams and can be used conveniently to study the motion of atoms in a dark-hollow laser beam. (C) 2004 Optical Society of America.
引用
收藏
页码:1058 / 1065
页数:8
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