角锥棱镜偏振特性的理论研究

Theoretical Study of Polarization Characteristics of Corner-Cube Retroreflector

角锥棱镜具有将光线原路返回的特性,其还会改变入射光线的偏振态。本研究先建立角锥棱镜模型,通过光线追迹,并利用矢量光学法来计算每个反射面的光矢量,得出角锥棱镜出入射光反向平行这一光学特性。同时,在立体几何中详细描述角锥棱镜某一入射和反射光线之间的坐标变化,得到光线沿该路径传播的琼斯矩阵解析表达式。通过反射矩阵和旋转矩阵来计算出角锥棱镜6种传播路径的琼斯矩阵,发现角锥棱镜内存在2条特殊的传播路径,沿该路径传播的线偏振光被角锥棱镜反射后仍是线偏振光。本研究的研究结果对环形腔选模提供了参考。

The corner cube prism has the characteristic of returning the light in the original way,and it also changes the polarization state of the incident light.In this study,the model of corner cube prism is established,and the optical vector of each reflecting surface is calculated by ray tracing and vector optics method.The optical characteristic that the incident light of corner cube prism is antiparallel is obtained.At the same time,the coordinate change between the incident and reflected light of the corner cube prism is described in detail in the solid geometry,and the Jones matrix analytic expression of the light propagating along the path is obtained.The Jones matrix of six propagation paths of the corner cube prism is calculated by reflection matrix and rotation matrix.It is found that there are two special propagation paths in the corner cube prism,and the linearly polarized light propagating along the path is still linearly polarized light after being reflected by the corner cube prism.The research results of this study provide a reference for the mold selection of the annular cavity.