Effects of optical axis direction on optical path difference and lateral displacement of Savart polariscope  

作　　者：张淳民 任文艺 穆廷魁 

机构地区：[1]School of Science,Xi'an Jiaotong University [2]MOE Key Labaratory for Nonequilibrium Synthesis and Modulation of Condensed Matter,Xi'an Jiaotong University

出　　处：《Chinese Physics B》2010年第2期243-252,共10页中国物理B（英文版）

基　　金：supported by the State Key Program of National Natural Science Foundation of China (Grant No. 40537031);the National Natural Science Foundation of China (Grant No. 40875013);the National Defense Basic Scientific Research Project, China (Grant No. A1420080187);the National High Technology Research and Development Program of China (Grant No. 2006AA12Z152)

摘　　要：A simple method is applied to calculating the optical path difference （OPD） of a plane parallel uniaxial plate with an arbitrary optical axis direction. Then, the theoretical expressions of the OPD and lateral displacement （LD） of Savart polariscope under non-ideal conditions are obtained exactly. The variations of OPD and LD are simulated, and some important conclusions are obtained when the optical axis directions have an identical tolerance of ／pm 1^{{／circ}}. An application example is given that the tolerances of optical axis directions are gained according to the spectral resolution tolerances of the stationary polarization interference imaging spectrometer （SPIIS）. Several approximate formulae are obtained for explaining some conclusions above. The work provides a theoretical guidance for the optic design, crystal processing, installation and debugging, data analysis and spectral reconstruction of the SPIIS.A simple method is applied to calculating the optical path difference （OPD） of a plane parallel uniaxial plate with an arbitrary optical axis direction. Then, the theoretical expressions of the OPD and lateral displacement （LD） of Savart polariscope under non-ideal conditions are obtained exactly. The variations of OPD and LD are simulated, and some important conclusions are obtained when the optical axis directions have an identical tolerance of ／pm 1^{{／circ}}. An application example is given that the tolerances of optical axis directions are gained according to the spectral resolution tolerances of the stationary polarization interference imaging spectrometer （SPIIS）. Several approximate formulae are obtained for explaining some conclusions above. The work provides a theoretical guidance for the optic design, crystal processing, installation and debugging, data analysis and spectral reconstruction of the SPIIS.

关 键 词：stationary polarization interference imaging spectrometer Savart polariscope optical axis optical path difference 

分 类 号：O435[机械工程—光学工程]