| 1.8 m太阳望远镜偏振标定单元设计 |
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| 引用本文： | 姚本溪, 饶长辉, 顾乃庭. 1.8 m太阳望远镜偏振标定单元设计[J]. 光电工程, 2018, 45(11): 180058. doi: 10.12086/oee.2018.180058 |
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| 作者姓名： | 姚本溪 饶长辉 顾乃庭 |
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| 作者单位： | 1. 中国科学院光电技术研究所, 四川 成都 610209; 2. 中国科学院自适应光学重点实验室, 四川 成都 610209; 3. 中国科学院大学, 北京 100049 |
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| 基金项目： | 国家自然科学基金资助项目(11178004, 11727805) |
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| 摘 要： | 中国1.8 m太阳望远镜(Chinese large solar telescope, CLST)致力于对太阳偏振的高精度及高灵敏度测量。然而其系统本身会引入仪器偏振, 并且在望远镜运行的过程中, 仪器偏振会随其指向的变化而变化。这就降低了系统的测量精度。因此, 需要一个偏振标定单元对其仪器偏振进行标定。为此, 本文对偏振标定的原理和方法进行了研究, 并且给出了针对CLST的偏振标定单元设计方案。
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| 关 键 词： | 太阳望远镜 偏振测量 标定 仪器偏振 |
| 收稿时间： | 2018-01-29 |
| 修稿时间： | 2018-04-08 |
Polarization calibration unit design of 1.8 m Chinese large solar telescope |
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| Yao Benxi, Rao Changhui, Gu Naiting. Polarization calibration unit design of 1.8 m Chinese large solar telescope[J]. Opto-Electronic Engineering, 2018, 45(11): 180058. doi: 10.12086/oee.2018.180058 |
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| Authors: | Yao Benxi Rao Changhui Gu Naiting |
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| Affiliation: | 1. Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China; 2. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | It is the main task for the Chinese large solar telescope (CLST) with a 1.8 m aperture to measure the solarpolarization with a high accuracy and sensitivity.However, the telescope system itself will introduce instrumentalpolarization.It also will change constantly with the rotating of the telescope and will reduce the accuracy.Therefore, a calibration unit is necessary to calibrate it.In this paper, we introduced the polarization calibration method andproposed a calibration unit structure. |
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| Keywords: | solar telescope polarimetry calibration instrumental polarization |
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