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1m红外太阳望远镜折轴光路与封窗偏振建模
刘维维; 袁沭; 金振宇
2015
Source Publication光学学报
ISSN0253-2239
Volume35Issue:8Pages:328
Abstract通过精确的偏振测量实现太阳中低层磁场遥感是1 m口径红外太阳望远镜的重要科学任务。为了实现高精度高效率的系统偏振定标,需要对望远镜系统进行偏振建模。分析了该望远镜折轴光路仪器偏振的周天和季节变化,以及望远镜真空封窗的应力双折射效应。结果显示折轴光路的偏振效应主要表现为线偏振与圆偏振之间的交扰,交扰程度最大达0.7。同时,由于像旋速度巨大,临近夏至期间太阳接近中天时偏振交扰会呈现一个震荡过程。封窗在重力和真空载荷的共同作用下,总的偏折特性可等效为一个位相延迟片;并且延迟量随望远镜高度角变化而变化。当望远镜指向水平时偏振交扰最明显,达1.2×10-2。
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/41466
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
刘维维,袁沭,金振宇. 1m红外太阳望远镜折轴光路与封窗偏振建模[J]. 光学学报,2015,35(8):328.
APA 刘维维,袁沭,&金振宇.(2015).1m红外太阳望远镜折轴光路与封窗偏振建模.光学学报,35(8),328.
MLA 刘维维,et al."1m红外太阳望远镜折轴光路与封窗偏振建模".光学学报 35.8(2015):328.
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