新型偏振干涉成像光谱仪中格兰-泰勒棱镜像质分析与评价

阐述了自行研制的新型偏振干涉成像光谱仪中重要偏光器件格兰-泰勒棱镜的分光机理，应用光线追迹法分析计算了光在格兰-泰勒棱镜中的传播规律与光线轨迹；推导出了任意角度入射时光线在棱镜中的传播方向及出射点坐标；给出了格兰-泰勒棱镜的像点位移和色差理论计算公式.该研究对晶体器件像质的分析计算及评价具有普遍的指导意义，为新型偏振干涉成像光谱技术的研究以及偏振干涉成像光谱仪的研制提供了重要的理论依据. 关键词： 偏振干涉成像光谱仪 格兰-泰勒棱镜 像点位移 色差

Analysis and evaluation of Glan-Taylor prism's image quality in a new polarization interference imaging spectrometer

Glan-Taylor prism is one of the most important polarization components of the new polarization interference imaging spectrometer developed in our laboratory. The principle of beam splitting and imaging of Glan-Taylor prism are presented. This paper deduces the propagation track of light in Glan-Taylor prism by ray-tracing method at random incidence angle and the theoretical expressions of image displacement and chromatic aberration are derived. The results will provide a theoretical basis for the study of new polarization interference imaging spectrum technology and the development of apparatuses.