强激光与粒子束2013，Vol.25Issue(5)：1171-1175,5.DOI:10.3788/HPLPB20132505.1171
利用分形法表征光学元件中高频相位畸变
Evaluating middle-high frequency phase distortion of optics by fractal method
黄晚晴 1张颖 1王文义 1耿远超 1刘兰琴1
作者信息
摘要
Abstract
Based on the fractal theory, this paper analyzed statistical distribution features of middle-high frequency phase distortion of the optics for Shenguang- [II laser facility. The middle-high frequency phase distribution is found to be consistent with the model of fractional Brownian random field. The fractal dimension was calculated by structure function. The fractal dimension of large-aperture neodymium-doped phosphate amplifier glass is distributed between 2. 34 and 2. 43. A method of phase simulation by random midpoint-displacement was presented. In this method, the fractal dimension can be viewed as a parameter for estimating phase distortion, which helps to evaluate the high laser optics.关键词
光学元件/相位畸变/分形法/分数布朗随机场/钕玻璃Key words
optics/phase distortion/fractal method/fractional Brownian random field/neodymium-doped phosphate amplifier glass分类
信息技术与安全科学引用本文复制引用
黄晚晴,张颖,王文义,耿远超,刘兰琴..利用分形法表征光学元件中高频相位畸变[J].强激光与粒子束,2013,25(5):1171-1175,5.
