液晶与显示2016，Vol.31Issue(8)：748-754,7.DOI:10.3788/YJYXS20163108.0748
液晶光谱偏振系统选偏器方位误差研究
Misalignment errors of polarizer in the liquid crystal spectropolarimetric system
摘要
Abstract
In order to analyze the misalignment errors of the liquid crystal spectropolarimetric system and reduce measurement errors,a research method for misalignment errors of liquid crystal polarizer is proposed.By transforming the misalignment errors of polarizing angle into Stokes vector transfer errors,the errors covariance matrix is derived based Stokes vectors and Mueller matrix.And the rela-tionship between weight coefficients and phase delay and the change of quality factor with different in-cident light are investigated.The reached conclusion is that azimuth errors depend on Stokes parame-ters of incident light and phase delay and quality factors are parabolic with different incident polariza-tion state.When delay phase locates in [60°,120°],the azimuth errors of polarizer are lesser,which is more appropriate to measure.By investigating the misalignment errors of the liquid crystal spectropo-larimetric system,the error sources are obtained which can lay the foundation for measuring accuracy enhancement.关键词
方位误差/液晶偏振光谱系统/协方差矩阵/Stokes 矢量Key words
misalignment error/liquid crystal spectropolarimetric system/covariance matrix/Stokes vector分类
数理科学引用本文复制引用
甘世奇,陈向宁,薛俊诗,赵融生..液晶光谱偏振系统选偏器方位误差研究[J].液晶与显示,2016,31(8):748-754,7.基金项目
国家863计划(No．2014AAXXX1072E) Supportedby National High Technology Research and Development Program (“863”Program)of China (No．2014AAXXX1072E) （No．2014AAXXX1072E）
