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Interference effect on the liquid-crystal-based Stokes polarimeter*
Hou, Jun-Feng1,2; Wang, Dong-Guang1; Deng, Yuan-Yong1,2; Zhang, Zhi-Yong1,2; Sun, Ying-Zi1
2020-12-01
Source PublicationCHINESE PHYSICS B
ISSN1674-1056
Volume29Issue:12Pages:11
AbstractThe Stokes polarimeter based on liquid crystal variable retarders (LCVRs) is envisaged as a promising novel technique for polarization measurement in space applications due to the inherent advantage of eliminating the need for conventional rotating polarizing optics and increasing the measuring speed. However, the intrinsic multi-beam interference in LCVRs limits its polarization accuracy by several percent. How to eliminate the influence of the interference effect becomes an urgent issue for the liquid-crystal-based Stokes polarimeter. The present study introduces a simplified but effective interference model based on the thin-film optics and polarized light theory to simulate the relationship between the interference effect of the LCVRs-based Stokes polarimeter and the polarization accuracy. The simulation results show that the transmittance variation of LCVR with the derived voltage is caused by multi beam interference between the indium tin oxide (ITO) film and the liquid crystal within LCVR, which produces a few percent of instrumental polarization. The instrumental polarization is about 0.01 and different for different wavelengths. An optimization method was proposed to reduce the instrumental polarization to 0.002, effectively improving the polarization sensitivity of the Stokes polarimeter limited by the interference. In addition, an experimental setup was built up to measure and analyze the influence of the interference effect of the LCVRs-based Stokes polarimeter on the polarization accuracy before and after the optimization. The experiment results are in good agreement with the simulation.
Keywordpolarimetry liquid crystal variable retarder (LCVR) interference effect
Funding OrganizationStrategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1088/1674-1056/abbbf4
WOS KeywordPOLARIZATION CALIBRATION ; MODULATOR
Language英语
Funding ProjectStrategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15010800] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15320102] ; National Natural Science Foundation of China[11427901] ; National Natural Science Foundation of China[11773040] ; National Natural Science Foundation of China[11403047] ; National Natural Science Foundation of China[11427803]
Funding OrganizationStrategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000598690900001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80118
Collection中国科学院国家天文台
Corresponding AuthorHou, Jun-Feng
Affiliation1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China
Recommended Citation
GB/T 7714
Hou, Jun-Feng,Wang, Dong-Guang,Deng, Yuan-Yong,et al. Interference effect on the liquid-crystal-based Stokes polarimeter*[J]. CHINESE PHYSICS B,2020,29(12):11.
APA Hou, Jun-Feng,Wang, Dong-Guang,Deng, Yuan-Yong,Zhang, Zhi-Yong,&Sun, Ying-Zi.(2020).Interference effect on the liquid-crystal-based Stokes polarimeter*.CHINESE PHYSICS B,29(12),11.
MLA Hou, Jun-Feng,et al."Interference effect on the liquid-crystal-based Stokes polarimeter*".CHINESE PHYSICS B 29.12(2020):11.
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