光学薄膜与系统的偏振控制
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摘要
在先进遥感仪器的性能表征中,偏振灵敏度是很重要的性能指标之一,它在量化高精度遥感信息反演中非常重要。光学薄膜是仪器偏振灵敏度控制中非常重要的一种手段。基于薄膜光学的传输矩阵理论,根据偏振灵敏度控制要求开展了几类光学薄膜的设计、分析和研制工作,主要包括金属反射膜、介质-金属-介质分色膜、介质分色膜、增透膜和带通滤光膜等。给出了一些已研制光学薄膜的偏振灵敏度控制的实测结果和以此研制的遥感仪器的系统偏振灵敏度的控制情况。
Polarization sensitivity is one of the main performance characterization indexes for advanced remote sensing instruments.It is very important in the quantification of high-precision remote sensing information extraction.Optical film is a very important means for controlling the polarization sensitivity of remote sensing instruments.On the basis of the theory of transfer matrix of optical films,the design,analysis and development of several types of optical films including metal reflective film,dielectric-metal-dielectric edge filtering film,dielectric edge filtering film,antireflection coating and band-pass filtering film are carried out according to the control requirements of polarization sensitivity.The measured results of polarization sensitivity of some coated optics and the actually controlled polarization sensitivity of the remote sensing instrument systems using those coated optics are given.
Polarization sensitivity is one of the main performance characterization indexes for advanced remote sensing instruments.It is very important in the quantification of high-precision remote sensing information extraction.Optical film is a very important means for controlling the polarization sensitivity of remote sensing instruments.On the basis of the theory of transfer matrix of optical films,the design,analysis and development of several types of optical films including metal reflective film,dielectric-metal-dielectric edge filtering film,dielectric edge filtering film,antireflection coating and band-pass filtering film are carried out according to the control requirements of polarization sensitivity.The measured results of polarization sensitivity of some coated optics and the actually controlled polarization sensitivity of the remote sensing instrument systems using those coated optics are given.
引文
[1]Egan W G.Photometry and Polarization in remote sensing[J].Eos Transactions American Geophysical Union,2013,67(10):122.
[2]Cao C,Wu X.The GOES-R Advanced Baseline Imager:Polarization Sensitivity and Potential Impacts[C].SPIE,2015,9613:96130K.
[3]Chipman R A.Linear Polarization Sensitivity Specifications for Spaceborne Instruments[C].SPIE,1992,1746:148-156.
[4]Macleod H A.Thin-Film Optical Filters(4th Edition)[M].Boca Raton:CRC Press,2010.
[2]Cao C,Wu X.The GOES-R Advanced Baseline Imager:Polarization Sensitivity and Potential Impacts[C].SPIE,2015,9613:96130K.
[3]Chipman R A.Linear Polarization Sensitivity Specifications for Spaceborne Instruments[C].SPIE,1992,1746:148-156.
[4]Macleod H A.Thin-Film Optical Filters(4th Edition)[M].Boca Raton:CRC Press,2010.