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研制了基于萨伐尔偏光镜的稳态偏振干涉成像光谱仪(SPIIS),阐述了其分光机理。应用光线追迹法以及光线折射率的概念,分析了计算光在双折射横向剪切分束器———萨伐尔(Savart)偏光镜中的传播规律和光线路径;给出了任意角度入射时,萨伐尔偏光镜横向剪切量和光程差的理论计算公式。较目前所报道的,仅给出入射面与主截面平行时横向剪切量的特殊情况,具有更普遍的指导意义;为新型偏振干涉成像光谱仪的设计、研制、调试和工程化提供重要理论和实践指导。
The Steady-state Polarimetric Interferometric Imaging Spectrometer (SPIIS) based on the Saarval polarizer was developed and its spectroscopic mechanism was described. By using the ray tracing method and the concept of light refractive index, the propagation law and the light path of calculated light in the birefringent transverse shear beam splitter, Savart polariscope, are analyzed. When Saffer polarizer transverse shear amount and the optical path difference of the theoretical formula. As reported to date, only a special case of horizontal shear when the incident plane is parallel to the main section is given a more general guideline. This provides an important theoretical and theoretical basis for the design, development, commissioning and engineering of a new polarization interference imaging spectrometer Practical guidance.