光学学报, 2009, 29 (7): 1947, 网络出版: 2009-07-20   

双光楔旋光退偏器的Mueller矩阵分析

Analysis of Double Plate Rotation Depolarizer by Mueller Matrix
作者单位
曲阜师范大学激光研究所, 山东 曲阜 273165
摘要
退偏度是衡量退偏器性能的主要参数。为了提高双光楔旋光退偏器的退偏性能, 应用平均Mueller矩阵推导出双光楔旋光退偏器退偏度的理论表达式, 并利用平均Mueller矩阵和斯托克斯矢量建立了退偏器偏振度与相关参量间的关系。通过对一阶贝塞尔函数求解, 理论上就退偏器的退偏性能进行了解释。退偏度的大小与入射光的波长、光瞳半径、退偏器的结构角等参数有关。在Matlab软件环境下对理论结果进行了模拟计算。模拟计算结果表明:波长越短退偏越容易, 在一定范围内适当增加光瞳半径或结构角可以提高退偏效果。理论结果与相应的实验结果相一致,证明了理论分析的正确性。为退偏器的优化设计、生产及使用提供了理论基础。
Abstract
Depolarization is a main paramenter of the depolarizer. In order to improve the performance of the double plate rotation depolarizer, the average Mueller matrix is used to derive the theory expression of depolarization. The relationship between depolarization-polarization and related parameters is propased by using the average Mueller matrix and Stokes vector. Through the first order Bessel function solution, a satisfactory explanation of the depolarization for the depolarizer in theory is gained. Depolarization is related to some parameters such as the wavelength, the beam diameters the structural angle etc. A digital simulation is performed based on Matlab software. The theory results show that the shorter wavelength depolarizers is easier, depolarization effects improve when inereasing pupil radius or angle structure. Theoretical results meet well with the experiment. The discussions can supply theoretical basis for the design, production and use of the depolarizer.
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宋师霞, 宋连科. 双光楔旋光退偏器的Mueller矩阵分析[J]. 光学学报, 2009, 29(7): 1947. Song Shixia, Song Lianke. Analysis of Double Plate Rotation Depolarizer by Mueller Matrix[J]. Acta Optica Sinica, 2009, 29(7): 1947.

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