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An Allotype Double H-V Depolarizer for Hyperfine Spectrometer
Alternative Title一种用于大气超光谱探测的异型双H-V消偏器
Tang Qian1; Guo Li-xin1; Zhao Bao-chang2
Contribution Rank2

High precision atmospheric detection spectrometers are widely used, because the sunlight would be polarized while passing the atmosphere and that could reduce detecting precision of the devices. There are many efforts on removing this influence. An allotype double H-V(Horizontal-Vertical) depolarizer is proposed, and it is equipped on hyperfine spectrometer used for atmosphere detecting in UV. Because the birefringence structure of crystals could eliminate the polarization, they are always chosen for depolarizers. Essentially, the birefringence of depolarizer can induce depolarization and double-imaging at the same time. The difference between traditional structure and the allotype is the inequality of the wedge angles of two sub H-Vs. There are different double-imaging distances in the spectrum dimension and the spatial dimension. So the contradiction between high depolarization and high-imaging quality could be resolved. This paper will describe the design and analyzed the result. Depolarization is better than 98.8% and distance of the double-imaging is just 8.7% in the spatial dimension.


KeywordSpectrometer Polarization Sensitivity H-v Depolarizer Wedge Angles
Indexed BySCI ; EI ; CSCD
WOS IDWOS:000418728900047
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Document Type期刊论文
Corresponding AuthorGuo Li-xin
Affiliation1.Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China;
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Tang Qian,Guo Li-xin,Zhao Bao-chang. An Allotype Double H-V Depolarizer for Hyperfine Spectrometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2017,37(12):3913-3919.
APA Tang Qian,Guo Li-xin,&Zhao Bao-chang.(2017).An Allotype Double H-V Depolarizer for Hyperfine Spectrometer.SPECTROSCOPY AND SPECTRAL ANALYSIS,37(12),3913-3919.
MLA Tang Qian,et al."An Allotype Double H-V Depolarizer for Hyperfine Spectrometer".SPECTROSCOPY AND SPECTRAL ANALYSIS 37.12(2017):3913-3919.
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