光电技术应用, 2013, 28 (5): 69, 网络出版: 2013-12-05   

镜面颗粒影响激光散射特性的模拟仿真

Simulation about Influence of Mirror Particulate on Laser Scattering Characteristics
作者单位
1 烟台大学光电信息科学技术学院,山东 烟台 264005
2 中国工程物理研究院激光聚变研究中心,四川 绵阳 621900
摘要
光学镜面上的激光散射特性对光学系统性能的影响十分重要。利用修正的米氏散射理论模拟计算了光学镜面的双向反射分布函数(BRDF)。结果表明: 镜面上的颗粒污染物能够十分明显地影响光的散射特性。此外,入射激光的波长与BRDF的值成反比,波长较短时,散射较复杂。因此,保持镜面的洁净对维护光学镜面的性能十分重要。
Abstract
The properties of optical system are affected by laser scattering characteristics of optical mirror significantly. Bidirectional reflectance distribution function (BRDF) of the optical mirror is simulated and calculated by modified Mie theory. The results show that the scattering characteristics of light are affected by particulate contaminants on the surface of a mirror obviously. In addition, the wavelength of a beam of incident laser is inversely proportional to BRDF value and scattering will becomes very complicated as the wavelength is shorter. Keeping the surface of optical mirror clean is very important for maintaining the properties of optical mirror.

孙腾飞, 曹增辉, 郑田甜, 张骏, 吕海兵, 袁晓东. 镜面颗粒影响激光散射特性的模拟仿真[J]. 光电技术应用, 2013, 28(5): 69. SUN Teng-fei, CAO Zeng-hui, ZHENG Tian-tian, ZHANG Jun, LU Hai-bing, YUAN Xiao-dong. Simulation about Influence of Mirror Particulate on Laser Scattering Characteristics[J]. Electro-Optic Technology Application, 2013, 28(5): 69.

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