部分相干余弦高斯光束在左手材料中的光强分布  

Left-handed materials of partially coherent cosh-Gaussian beam intensity distribution

作　　者：黄永超[1] 黎昌金[1] 张新龙[1] 胡晓秋[1] HUANG Yongchao LI Ohangjin ZHANG Xinlong HU Xiaoqiu(College of Engineering and Technology, Neijiang Normal University, Neijiang 641112, China)

机构地区：[1]内江师范学院工程技术学院,四川内江641112

出　　处：《光学技术》2017年第1期87-89,共3页Optical Technique

基　　金：内江师范学院项目(13ZA05;14ZB08);四川省教育厅重点项目(14ZA0246)资助

摘　　要：基于积分衍射理论和相干偏振理论,研究了部分相干余弦高斯光束在左手材料中的光强的分布。研究结果表明:中心光强随工作频率增大,先增大后逐渐趋于稳定,但是随相干参量增大而减小;横向光强随相干参量增大而减小,随偏心参量增大光强的最大峰值不变,但是光强的峰值数目在不断增加。Based on Points diffraction theory and coherent polarization theory, left-handed materials of partially co- herent cosh -Gaussian beam intensity distribution are studied. The results show that the center intensity first strengthen and then gradually smooth with increasing of the operating frequency, but it decreases with increasing of coherent param- eter. Transversal intensity decreases with increasing of coherent parameter and its maximum peak intensity is constant with increasing of centrifugal parameter, but the peak number of light intensity is increasing.

关 键 词：物理光学 左手材料 工作频率 光强 部分相干 

分 类 号：O439[机械工程—光学工程]