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Department自适应光学技术研究室(八室)
Optical compensation of the Chinese Large Solar Telescope instrumental polarization
Yao, B.X.1,2,3; Gu, N.T.1,2; Rao, C.H.1,2
Source PublicationJOURNAL OF OPTICAL TECHNOLOGY
Volume85Issue:10Pages:639-643
2018-10-01
Language英语
ISSN1070-9762
DOI10.1364/JOT.85.000639
Indexed BySCI ; Ei
WOS IDWOS:000446968400008
EI Accession Number20184305973154
SubtypeJ
AbstractOne of the main tasks for the Chinese Large Solar Telescope (CLST) is to measure the solar polarization with high accuracy and sensitivity. However, as a classic Gregorian configuration telescope with an alt-azimuth mount, the telescope system itself will introduce instrumental polarization. Even though there will be a calibration unit on the second focus, it is still hard to calibrate the instrumental polarization all the time because it will change constantly with the rotation of the telescope. In this paper, we proposed a project to compensate the CLST instrumental polarization with an optical compensator. This compensator, which consists of seven flat mirrors, can in theory compensate the CLST instrumental polarization for any spectral lines. When the polarimeter is not working, it can be removed from the system. We simulated the project using software called the Advanced System Analysis Program (ASAP). The result showed that this unit can compensate the instrumental polarization completely without considering the post-focal instruments. (C) 2018 Optical Society of America
KeywordPolarization
WOS KeywordPOLARIMETRY ; GREGOR
EI KeywordsPolarization
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/9301
Collection自适应光学技术研究室(八室)
Affiliation1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing; 100049, China
Recommended Citation
GB/T 7714
Yao, B.X.,Gu, N.T.,Rao, C.H.. Optical compensation of the Chinese Large Solar Telescope instrumental polarization[J]. JOURNAL OF OPTICAL TECHNOLOGY,2018,85(10):639-643.
APA Yao, B.X.,Gu, N.T.,&Rao, C.H..(2018).Optical compensation of the Chinese Large Solar Telescope instrumental polarization.JOURNAL OF OPTICAL TECHNOLOGY,85(10),639-643.
MLA Yao, B.X.,et al."Optical compensation of the Chinese Large Solar Telescope instrumental polarization".JOURNAL OF OPTICAL TECHNOLOGY 85.10(2018):639-643.
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