To avoid the problems of the classical interference imaging spectrometer,such as poor stabilization,and intractable interference fringes,a novel polarization interference imaging spectrometer based on a new adjustable lateral displacement Savart polariscope is developed.
具体分析推导了光线入射角变化对这种新型的可调横向剪切量萨伐尔偏光镜的光程差、偏振度以及对系统干涉条纹的影响;简要论述了这种新型偏振干涉成像光谱仪的工作机理和运行方式,从原理上论证了它具有重量轻、体积小、抗震性好、适用范围广、分束光线平行均匀分布、干涉图样清晰、处理简便等诸多优点,为新型可调横向剪切量的偏振干涉成像光谱仪的设计、研制、调试和工程化提供理论依据和实践指导。
The shearing principle of Savart polariscope in the static polarization interference imaging spectrometer (SPIIS) is presented and the exact expression of the lateral displacement and optical path difference (OPD) are deduced by ray-tracing method and the notion of ray index at random incidence angle.
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。