晶体光轴取向和厚度对双光楔消偏器性能的影响
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摘要
在消偏器工作原理的基础上,利用米勒矩阵和斯托克斯矢量,建立消偏器结构参数与光学系统偏振敏感度的一般关系。借助数值分析,当两楔形晶体光轴夹角为90°时,消偏器具有优良的消偏性能,并且光轴取向下时调整晶体厚度可进一步减小光学系统偏振敏感度。以光栅成像光谱仪为例设计消偏器,给出其性能评价。
Based on the working principle of depolarizer,the general relationship between the structural parameters of depolarizer and the polarization sensitivity of optical system is established by applying Mueller matrix and Stokes vector.With numerical analysis,it is pointed out that the depolarizer has excellent depolarization performance when the angle between the optical axes of two wedge crystals is 90°.Under this orientation,selecting proper crystal thickness can further reduce the polarization sensitivity of optical system.Finally,taking grating imaging spectrometer as an example,we design a depolarizer and evaluate its performance.
Based on the working principle of depolarizer,the general relationship between the structural parameters of depolarizer and the polarization sensitivity of optical system is established by applying Mueller matrix and Stokes vector.With numerical analysis,it is pointed out that the depolarizer has excellent depolarization performance when the angle between the optical axes of two wedge crystals is 90°.Under this orientation,selecting proper crystal thickness can further reduce the polarization sensitivity of optical system.Finally,taking grating imaging spectrometer as an example,we design a depolarizer and evaluate its performance.
引文
[1]Burns W.Degree of polarization in the Lyot depolarizer[J].Journal of Lightwave Technology,1983,1(3):475-479.
[2]Ge J H,Chen Z,Chen Y F,et al.Optimized design of parameters for wedge-crystal depolarizer[J].Applied Mechanics and Materials,2012,110-116:3351-3357.
[3]Chen Fang,Xu Pengmei.Depolarizer design for broadband imaging grating spectrometer[J].Acta Optica Sinica,2014,34(4):0422002.陈芳,徐彭梅.宽谱段成像光栅光谱仪消偏器的设计[J].光学学报,2014,34(4):0422002.
[4]Bourg L,Delwart S.MERIS instrument calibration[C].MERIS and AATSR Calibration and Geophysical Validation,2006.
[5]McClain S C,Chipman R A,Hillman L W.Aberrations of a horizontal-vertical depolarizer[J].Applied Optics,1992,31(13):2326-2331.
[6]Zhao Facai,Wang Shurong,Qu Yi,et al.Design and analysis of a depolarizer for the space-borne grating imaging spectrometer[J].Spectroscopy and Spectral Analysis,2011,31(7):1991-1994.赵发财,王淑荣,曲艺,等.星载光栅成像光谱仪的退偏器设计与分析[J].光谱学与光谱分析,2011,31(7):1991-1994.
[7]McClain S C,Maymon P W,Chipman R A.Design and analysis of a depolarizer for the NASA moderate-resolution imaging spectrometer-tilt(MODIS-T)[C].SPIE,1992,1746:375-385.
[8]Song Shixia,Song Lianke.Analysis of double plate rotation depolarizer by Mueller matrix[J].Acta Optica Sinica,2009,29(7):1947-1950.宋师霞,宋连科.双光楔旋光退偏器的Mueller矩阵分析[J].光学学报,2009,29(7):1947-1950.
[9]Chipman R A,McGuire J P.Analysis of spatial pseudodepolarizers in imaging systems[J].Optical Engineering,1990,29(12):1478-1484.
[10]Dobber M R,Dirksen R J,Levelt P F,et al.Ozone monitoring instrument calibration[J].IEEE Transactions on Geoscience and Remote Sensing,2006,44(5):1209-1238.
[11]Goldstein D H.Polarized light[M].Boca Raton:CRC Press,2011:96,220.
[2]Ge J H,Chen Z,Chen Y F,et al.Optimized design of parameters for wedge-crystal depolarizer[J].Applied Mechanics and Materials,2012,110-116:3351-3357.
[3]Chen Fang,Xu Pengmei.Depolarizer design for broadband imaging grating spectrometer[J].Acta Optica Sinica,2014,34(4):0422002.陈芳,徐彭梅.宽谱段成像光栅光谱仪消偏器的设计[J].光学学报,2014,34(4):0422002.
[4]Bourg L,Delwart S.MERIS instrument calibration[C].MERIS and AATSR Calibration and Geophysical Validation,2006.
[5]McClain S C,Chipman R A,Hillman L W.Aberrations of a horizontal-vertical depolarizer[J].Applied Optics,1992,31(13):2326-2331.
[6]Zhao Facai,Wang Shurong,Qu Yi,et al.Design and analysis of a depolarizer for the space-borne grating imaging spectrometer[J].Spectroscopy and Spectral Analysis,2011,31(7):1991-1994.赵发财,王淑荣,曲艺,等.星载光栅成像光谱仪的退偏器设计与分析[J].光谱学与光谱分析,2011,31(7):1991-1994.
[7]McClain S C,Maymon P W,Chipman R A.Design and analysis of a depolarizer for the NASA moderate-resolution imaging spectrometer-tilt(MODIS-T)[C].SPIE,1992,1746:375-385.
[8]Song Shixia,Song Lianke.Analysis of double plate rotation depolarizer by Mueller matrix[J].Acta Optica Sinica,2009,29(7):1947-1950.宋师霞,宋连科.双光楔旋光退偏器的Mueller矩阵分析[J].光学学报,2009,29(7):1947-1950.
[9]Chipman R A,McGuire J P.Analysis of spatial pseudodepolarizers in imaging systems[J].Optical Engineering,1990,29(12):1478-1484.
[10]Dobber M R,Dirksen R J,Levelt P F,et al.Ozone monitoring instrument calibration[J].IEEE Transactions on Geoscience and Remote Sensing,2006,44(5):1209-1238.
[11]Goldstein D H.Polarized light[M].Boca Raton:CRC Press,2011:96,220.