电控矢量涡旋光的偏振测试研究

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。

Polarization measurement of electronically controlled vector vortex light

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.