光学学报, 2005, 25 (7): 885, 网络出版: 2006-05-22   

萨伐尔偏光镜横向剪切量和光程差的精确计算

Exact Calculation of the Lateral Displacement and Optical Path Difference of Savart Polariscopes
作者单位
1 西安交通大学理学院,西安 710049
2 中国科学院西安光学精密机械研究所, 西安 710068
摘要
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。
Abstract
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. The theoretical and practical guidance are thereby provided for the study, design, modulation, experiment and engineering of the polarization interference imaging spectrometers.
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吴磊, 张淳民, 袁艳, 赵葆常. 萨伐尔偏光镜横向剪切量和光程差的精确计算[J]. 光学学报, 2005, 25(7): 885. 吴磊, 张淳民, 袁艳, 赵葆常. Exact Calculation of the Lateral Displacement and Optical Path Difference of Savart Polariscopes[J]. Acta Optica Sinica, 2005, 25(7): 885.

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