星载光栅色散型光谱仪消偏器的设计与分析
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摘要
为了保证成像测量结果的相对准确性,需要消除光谱仪中光学器件的偏振响应,加入消偏器是一种常用的消偏方法。由于成像光谱仪探测性能的要求,不仅需要消偏器在光谱仪的响应波段内具有良好的消偏效果,还要求消偏器应尽可能小地影响光谱仪的成像质量;对大气遥感探测星载双楔角临边成像光谱仪中的消偏器进行研究,通过积分的方式对消偏器的楔角进行计算分析,通过MATLAB的优化仿真确定了影响消偏器性能的参数,并对其进行了相关的误差分析。
In order to ensure the relative accuracy of measurement results of the imaging spectrometer, we must eliminate the polarization response of the optical devices in the spectrometer. A common method is adding depolarizer. The detection performance of the imaging spectrometer requires the depolarizer not only has the good depolarizing effect in response waveband of the spectrometer, but also affects the imaging quality of spectrometer as little as possible. In this paper, a compact double wedge depolarizer of limb imaging spectrometer for atmosphere remote sensing detection is studied. The wedge angle of the depolarizer is calculated and analyzed by means of integration, in addition, the parameters that affect the performance of the depolarizer are determined by MATLAB optimization simulation, and the related error analysis is carried out.
In order to ensure the relative accuracy of measurement results of the imaging spectrometer, we must eliminate the polarization response of the optical devices in the spectrometer. A common method is adding depolarizer. The detection performance of the imaging spectrometer requires the depolarizer not only has the good depolarizing effect in response waveband of the spectrometer, but also affects the imaging quality of spectrometer as little as possible. In this paper, a compact double wedge depolarizer of limb imaging spectrometer for atmosphere remote sensing detection is studied. The wedge angle of the depolarizer is calculated and analyzed by means of integration, in addition, the parameters that affect the performance of the depolarizer are determined by MATLAB optimization simulation, and the related error analysis is carried out.
引文
[1] Wu C J, Yan C X, Liu W, et al. Prism hyperspectral imaging optical system design with rectangular aperture[J]. Acta Optica Sinica, 2013, 33(12): 1222001. 吴从均, 颜昌翔, 刘伟, 等. 方形孔径棱镜式成像光谱仪光学设计[J]. 光学学报, 2013, 33(12): 1222001.
[2] Xue Q S, Wang S R, Yu X Y. Dyson spectral imaging system with large relative aperture and wide spectral region[J]. Optical and Precision Engineering, 2013, 21(10): 2535-2542. 薛庆生, 王淑荣, 于向阳. 大相对孔径宽波段Dyson光谱成像系统[J]. 光学精密工程, 2013, 21(10): 2535-2542.
[3] Wu T X, Yan L, Xiang Y. The multi-angle polarization spectral character of water and its applications in water color remote sensing[J]. Spectroscopy and Spectral Analysis, 2010, 30(2): 448-452. 吴太夏, 晏磊, 相云. 水体的多角度偏振波谱特性及其在水色遥感中的应用[J]. 光谱学与光谱分析, 2010, 30(2): 448-452.
[4] Stephen C. Design and analysis of depolarizer for NASA moderate resolution imaging spectrometer-tilt(MODIS-T)[J]. Proceedings of SPIE, 1992, 1746: 375-385.
[5] Chen F, Xu P M. Depolarizer 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.
[6] Yan F P, Yao Y, Jian S S. Characteristics of Loyt optical fiber depolarizer[J]. Acta Optica Sinica, 1996, 16(6): 848-852. 延凤平, 姚毅, 简水生. 基于Lyot型光纤消偏器特性的研究[J]. 光学学报, 1996, 16(6): 848-852.
[7] Chi H, Zhang X M, Chen K S. Coherence analysis of Lyot depolarizer[J]. Journal of Zhejiang University, 2000, 34(2): 140-142. 池灏, 章献民, 陈抗生. Lyot退偏器的相干分析[J]. 浙江大学学报, 2000, 34(2): 140-142.
[8] Wang R, Wang S R, Li F T. Research on the depolarizer performance of the space-borne grating spectrometer[J]. Optial Technique, 2009, 35(1): 89-92. 王锐, 王淑荣, 李福田. 星载光栅光谱仪消偏器性能研究[J]. 光学技术, 2009, 35(1): 89-92.
[9] Tang Q, Guo L X, Zhao B C. An allotype double H-V depolarizer for hyperfine spectrometer[J]. Spectroscopy and Spectral Analysis, 2017, 37(12): 3913-3919. 唐茜, 郭立新, 赵葆常. 一种用于大气超光谱探测的异性双H-V消偏器[J]. 光谱学与光谱分析, 2017, 37(12): 3913-3919.
[10] Wei G H. Matrix optics[M]. Beijing: Arms Industry Press, 1995. 魏光辉. 矩阵光学[M]. 北京: 兵器工业出版社, 1995.
[11] Jin Y M, Shen W M. Design of double wedge depolarizer for grating imaging spectrometer[C]. The Chinese Society for Optical Engineering Conferences, 2016: 1025522.
[12] Dennis G. Polarized light[M]. Boca Raton, FL: CRC Press, 2011: 96, 220.
[13] Ge J H, Chen Z. Optimized design of parameters for wedge-crystal depolarizer[J]. Applied Mechanics and Materials, 2012, 110/116: 3351-3357.
[2] Xue Q S, Wang S R, Yu X Y. Dyson spectral imaging system with large relative aperture and wide spectral region[J]. Optical and Precision Engineering, 2013, 21(10): 2535-2542. 薛庆生, 王淑荣, 于向阳. 大相对孔径宽波段Dyson光谱成像系统[J]. 光学精密工程, 2013, 21(10): 2535-2542.
[3] Wu T X, Yan L, Xiang Y. The multi-angle polarization spectral character of water and its applications in water color remote sensing[J]. Spectroscopy and Spectral Analysis, 2010, 30(2): 448-452. 吴太夏, 晏磊, 相云. 水体的多角度偏振波谱特性及其在水色遥感中的应用[J]. 光谱学与光谱分析, 2010, 30(2): 448-452.
[4] Stephen C. Design and analysis of depolarizer for NASA moderate resolution imaging spectrometer-tilt(MODIS-T)[J]. Proceedings of SPIE, 1992, 1746: 375-385.
[5] Chen F, Xu P M. Depolarizer 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.
[6] Yan F P, Yao Y, Jian S S. Characteristics of Loyt optical fiber depolarizer[J]. Acta Optica Sinica, 1996, 16(6): 848-852. 延凤平, 姚毅, 简水生. 基于Lyot型光纤消偏器特性的研究[J]. 光学学报, 1996, 16(6): 848-852.
[7] Chi H, Zhang X M, Chen K S. Coherence analysis of Lyot depolarizer[J]. Journal of Zhejiang University, 2000, 34(2): 140-142. 池灏, 章献民, 陈抗生. Lyot退偏器的相干分析[J]. 浙江大学学报, 2000, 34(2): 140-142.
[8] Wang R, Wang S R, Li F T. Research on the depolarizer performance of the space-borne grating spectrometer[J]. Optial Technique, 2009, 35(1): 89-92. 王锐, 王淑荣, 李福田. 星载光栅光谱仪消偏器性能研究[J]. 光学技术, 2009, 35(1): 89-92.
[9] Tang Q, Guo L X, Zhao B C. An allotype double H-V depolarizer for hyperfine spectrometer[J]. Spectroscopy and Spectral Analysis, 2017, 37(12): 3913-3919. 唐茜, 郭立新, 赵葆常. 一种用于大气超光谱探测的异性双H-V消偏器[J]. 光谱学与光谱分析, 2017, 37(12): 3913-3919.
[10] Wei G H. Matrix optics[M]. Beijing: Arms Industry Press, 1995. 魏光辉. 矩阵光学[M]. 北京: 兵器工业出版社, 1995.
[11] Jin Y M, Shen W M. Design of double wedge depolarizer for grating imaging spectrometer[C]. The Chinese Society for Optical Engineering Conferences, 2016: 1025522.
[12] Dennis G. Polarized light[M]. Boca Raton, FL: CRC Press, 2011: 96, 220.
[13] Ge J H, Chen Z. Optimized design of parameters for wedge-crystal depolarizer[J]. Applied Mechanics and Materials, 2012, 110/116: 3351-3357.