单层介质膜保偏全反射直角三棱镜镀膜材料的选择及其微分相位特性研究

Choice of Film Materials and Differential Phase Characters of Polarization Preserving Totally Reflecting Prisms with a Single Medium Layer

入射角、基底玻璃折射率、膜介质折射率、膜厚等因素会影响单层介质膜保偏全反射直角三棱镜的保偏特性，且各因素的影响程度并不相同。本文分析了上述各因素的微小变化对保偏特性的影响。

The incident angle, refractive indices of the glass and the film, and thickness of the film can influence the polarization preserving characters of polarization preserving totally reflecting prisms with a single medium layer. The effects of small variances of these factors are analysed, and a method of choosing film materials is proposed.