NIAOT OpenIR  > 中国科学院南京天文光学技术研究所  > 会议论文
A demonstration test of the dual-beam polarimetry differential imaging system for the high-contrast observation
Jiangpei Dou; Deqing Ren; Yongtian Zhu; Xue Wang; Xi Zhang; Rong Li
2012-09-24
Source PublicationGround-based and Airborne Instrumentation for Astronomy IV
Volume8446
Issue8446
PagesVol.8446 1X-1-9
Conference Date2012-7-1
Conference PlaceAmsterdam, Netherlands
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
We propose a dual-beam polarimetry differential imaging test system that can be used for the direct imaging of the exoplanets. The system is composed of a liquid crystal variable retarder (LCVR) in the pupil to switch between two orthogonal polarized states, and a Wollaston prism (WP) that will be inserted before the final focal focus of the system to create two polarized images for the differential subtraction. Such a system can work separately or be integrated in the coronagraph system to enhance the high-contrast imaging. To demonstrate the feasibility of the proposed system, here we show the initial test result both with and without integrating our developed coronagraph. A unique feature for this system is that each channel can subtract with itself by using the retarder to rotate the planet’s polarization orientation, which has the best performance according to our lab test results. Finally, it is shown that the polarimetry differential imaging system is a promising technique and can be used for the direct imaging observation of reflected lights from the exoplanets.
KeywordExoplanets Polarimetry Differential Imaging High-contrast Imaging Image Processing Optimization
Subject Area系外行星探测
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/633
Collection中国科学院南京天文光学技术研究所_会议论文
Recommended Citation
GB/T 7714
Jiangpei Dou,Deqing Ren,Yongtian Zhu,et al. A demonstration test of the dual-beam polarimetry differential imaging system for the high-contrast observation[C]:SPIE,2012:Vol.8446 1X-1-9.
Files in This Item: Download All
File Name/Size DocType Version Access License
A demonstration test(2050KB) 开放获取CC BY-NC-NDView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiangpei Dou]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiangpei Dou]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiangpei Dou]'s Articles
[Deqing Ren]'s Articles
[Yongtian Zhu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A demonstration test of the dual-beam polarimetry differential imaging system for the high-contrast observation.PDF
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.