Hermite-Cosh-Gaussian光束在单轴晶体中的传输  

Propagation Properties of Hermite-Cosh-Gaussian Beams in Uniaxially Anisotropic Crystals

作　　者：唐斌[1] 唐慧琴[2] 朱开成[2] 杨海燕[3] 文伟[2] 

机构地区：[1]江苏工业学院信息系,江苏常州213164 [2]中南大学物理科学与技术学院,湖南长沙410083 [3]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《光电子．激光》2006年第10期1275-1279,共5页Journal of Optoelectronics·Laser

摘　　要：基于光束在各向异性介质中传输的傍轴矢量理论,对沿x方向偏振的Hermite-Cosh-Gaussian(HChG)光束在单轴各向异性介质中的传输作了研究,得到了解析的传输公式,并借助于数值方法讨论了各向异性介质对x方向偏振的HChG光束偏振特性的影响。结果表明,对于初始沿x方向偏振的入射光束,在晶体中其场强因参量取不同值而有不同分布。The propagation properties of polarized Hermite-Oosh-Gaussian （HChG） beams along the optical axis of uniaxially anisotropic crystals are investigated. Based on the paraxial vectorial theories of beam propagation,an analytic expression of the diffraction light field is obtained. The effects of the anisotropy on the polarization properties of the diffracted HChG light beams have also been explained by means of the numerical method. The resuits elucidate that the distributions of the optical field change with the different parametric variation for the polarized beams in the anisotropic crystals.

关 键 词：各向异性 Hermite-Cosh—Gaussian(HchG)光束 单轴晶体 传输 

分 类 号：O734[理学—晶体学]