Optical compensation of the Chinese Large Solar Telescope instrumental polarization

doi:10.1364/JOT.85.000639

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 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
刊名	JOURNAL OF OPTICAL TECHNOLOGY
	2018-10-01
卷号	85 期号:10 页码:639-643
关键词	Polarization
ISSN号	1070-9762
DOI	10.1364/JOT.85.000639
文献子类	J
英文摘要	One 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
WOS关键词	POLARIMETRY ; GREGOR
语种	英语
WOS记录号	WOS:000446968400008
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9301]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	1.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
推荐引用方式 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.