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Polarization modeling for the main optics of Chinese Giant Solar Telescope
Yuan S(袁沭); Fu Y(付玉); Jin ZY(金振宇)
会议录名称Proceedings of SPIE - The International Society for Optical Engineering - Integrated Modeling of Complex Optomechanical Systems II
2016
卷号10012
DOI10.1117/12.2200925
会议录编者/会议主办者Riva, M
产权排序第1完成单位
收录类别EI ; CPCI
会议名称Integrated Modeling of Complex Optomechanical Systems II
会议日期2015-10-07
会议地点Milan, Italy
会议赞助商Natl Inst Astrophys; European S Observatory; OPTICON; Natl Inst Astrophys, Astron Observatory Brera
关键词Chinese Giant Solar Telescop Ring Segmented Telescope Polarization Modeling Polarization Light Ray Tracing Field Of View Spider Legs Segment Gap Segment Coating
摘要

Chinese Giant Solar Telescope, which has a 8m diameter segmented primary mirror, is a plan for the next generation ground-based large solar telescope in China. A major scientific requirement for this telescope is the high accuracy polarimetry. In this paper, the instrumental polarization of the main optics is analyzed by polarization modeling, which is caused by off-axial field of view, spider asymmetry, nonuniform segment gap and segment coating. The result shows that the net polarization is sensitive to the asymmetrical spider leg widening and the uniformity of the segment optical property. For meeting the accuracy requirement, the extinction ratio and retardence error for each segment should be less than 0.3% and 0.8 degree, respectively. Generally, the ring segmented primary mirror have advantage in controlling the instrumental polarization for large main optics. © 2016 SPIE.

资助项目NSFC of China[11303089] ; NSFC of China[11203075]
项目资助者NSFC of China
语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号978-1-5106-0432-2; 978-1-5106-0433-9
ISSN号0277-786X
URL查看原文
WOS记录号WOS:000391690900005
WOS研究方向Optics
WOS类目Optics
EI入藏号20163502753150
EI主题词Telescopes
EI分类号741.1light/optics - 741.3optical Devices And Systems - 813.2coating Materials
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9796
专题抚仙湖太阳观测站
通讯作者Yuan S(袁沭)
作者单位Yunnan Observatories, Chinese Academy of Sciences, Laboratory of Astronomical Technologies, P.0.Box110, Kunming 650011, Yunnan, China
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GB/T 7714
Yuan S,Fu Y,Jin ZY. Polarization modeling for the main optics of Chinese Giant Solar Telescope[C]//Riva, M. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2016.
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