径向矢量光场在双延迟器作用下的偏振演化

延迟器作为改变光信号偏振态的一种重要光学器件，具有高偏振变换精度、低成本、算法简单等特点，利用一个1/4波片和一个1/2波片组合可实现对径向矢量光场偏振调制的新方法，采用Jones矩阵算法分析了双波片的调制机理，将光场的偏振演化规律在庞加莱球上表示，并通过实验验证理论分析的正确性，研究结果表明:双延迟器结构可实现对径向矢量光场的复杂偏振调控，并获得光强均匀分布、偏振态有规律分布的矢量光束。

Polarization evolution of radial vector field on double retarders

As an important optical device for changing the polarization state of an optical signal, a retarder has high polarization conversion accuracy, low cost, and simple algorithm. A new method was proposed for polarization modulation of radial vector optical field using a combination of a 1/4 wave plate and a 1/2 wave plate. The Jones matrix algorithm was used to analyze the modulation mechanism of the dual-wave plate. The polarization evolution law of the light field was represented on a Poincar sphere, and the correctness of the theoretical analysis was verified through experiments. The results show that the dual retarder structure can realize complex polarization control of radial vector light field, and obtain a vector field with uniform light intensity distribution and regular polarization state distribution.