电控矢量涡旋光的偏振测试研究  

Polarization measurement of electronically controlled vector vortex light

作　　者：郁步昭 王吉明[1] 刘友文[1] 吴彤[2] 路元刚[2] 杨雁南[1] YU Buzhao;WANG Jiming;LIU Youwen;WU Tong;LU Yuangang;YANG Yannan(Department of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;Key Laboratory of Space Photoelectric Detection and Perception of Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China)

机构地区：[1]南京航空航天大学理学院应用物理系,南京211106 [2]南京航空航天大学空间光电探测与感知工业和信息化部重点实验室,南京211106

出　　处：《激光技术》2022年第4期454-459,共6页Laser Technology

基　　金：国家自然科学基金资助项目(61875086);上海市全固态激光器与应用技术重点实验室开放基金资助项目(ADL-2019001);南京航空航天大学空间光电探测与感知工业和信息化部重点实验室开放课题资助项目(NJ2020021-4)。

摘　　要：为了研究电控相位延迟对矢量涡旋光偏振态的影响规律,采用半波液晶可变延迟器和液晶q波片搭建了电控矢量涡旋光的全斯托克斯偏振测试实验装置,进行了电控矢量涡旋光的斯托克斯参量传输特性的Muller矩阵分析和实验验证。通过对输入偏振光进行连续相位调控,获得了其通过调谐q波片后的输出光束偏振态演变规律。结果表明,电控相位延迟会改变角向和径向偏振光的局域偏振椭偏度,且随电压变化呈线性关系,同时偏振态演变会影响矢量涡旋光的输出光强。此研究对于探索电控矢量涡旋光的偏振转换有着重要的意义。In order to study the influence of electrically controlled phase delay on the polarization state of vector vortices,a full Stokes polarization measurement for electrically controlled polarization vortexing was built by using a liquid crystal variable retarder and a liquid crystal q wave-plate.Muller matrix analysis and experimental verification of Stokes parameter transmission characteristics of electronically controlled vector vortices were presented.By continuous phase control of the input polarized light,the polarization regulation evolution of the output light beam was obtained after it passes through the tuned q wave-plate.The results show that the electrically controlled phase delay can change the ellipsicity of the local polarization of the angular and radial polarized light,and the change of the polarization state can affect the output intensity of the vector vortex light.The research is of great significance to the exploration of polarization conversion of electrically controlled vector vortices.

关 键 词：物理光学 偏振 矢量场 斯托克斯参量 液晶可变延迟器 q波片 

分 类 号：O436.3[机械工程—光学工程]