Prospect of liquid crystal adaptive optics in astronomy application

XUAN Li; LI Da-yu; LIU Yong-gang

doi:10.3788/YJYXS20153001.0001

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Prospect of liquid crystal adaptive optics in astronomy application

Invited Paper | 更新时间：2020-08-12

- Prospect of liquid crystal adaptive optics in astronomy application
- Chinese Journal of Liquid Crystals and Displays Vol. 30, Issue 1, Pages: 1-9(2015)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春,130022
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20153001.0001
  CLC： O439;TH743;TN141.9
- Received：21 July 2014，
  
  Revised：15 August 2014，
  
  Published：05 February 2015
- 稿件说明：
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宣丽, 李大禹, 刘永刚. 液晶自适应光学在天文学研究中的应用展望[J]. 液晶与显示, 2015,30(1): 1-9

XUAN Li, LI Da-yu, LIU Yong-gang. Prospect of liquid crystal adaptive optics in astronomy application[J]. , 2015,30(1): 1-9
宣丽, 李大禹, 刘永刚. 液晶自适应光学在天文学研究中的应用展望[J]. 液晶与显示, 2015,30(1): 1-9 DOI： 10.3788/YJYXS20153001.0001.

XUAN Li, LI Da-yu, LIU Yong-gang. Prospect of liquid crystal adaptive optics in astronomy application[J]. , 2015,30(1): 1-9 DOI： 10.3788/YJYXS20153001.0001.

摘要

液晶波前校正器作为一种高单元密度的新型波前校正器件

通过相息图的衍射可以轻松实现十微米的波前位相校正量.因此

基于液晶波前校正器的自适应光学(LCAO)系统是21世纪天文观测领域非常有希望普及的系统.但是液晶波前校正器存在响应速度慢(>10 ms)、能量利用率低的双重问题

国际上一直处于探索研究中.本课题组不但解决了能量问题

而且在速度方面不断取得进步

所研制的LCAO系统与1.23 m口径望远镜连接

清晰观测到土星及其环绕的光环带

分辨出4.8和5.5视星等的-Com双星

成像分辨率达到1.8倍衍射极限分辨率;目前系统延迟时间只有2 ms

可以说已达到工程应用水平

在装备8～10 m级大口径天文学望远镜方面极具应用潜力.

Abstract

Liquid crystal wavefront corrector can easily achieve 10 m phase stroke correction through kinoform diffraction pattern. Therefore

the liquid crystal adaptive optics (LCAO) system is very promising in the field of astronomical observations in the 21st century. Disadvantages of the liquid crystal wavefront corrector are low response speed and low energy efficiency. Our group not only solves the energy problem

but also continuously improves the performance of speed. The LCAO system developed by our group is connected to the 1.23 m telescope. As a result

Saturn and its planetary ring was clearly observed

and the -Com binary was also resolved. The imaging resolution is up to 1.8 times of the diffraction limit of the 1.23 m telescope. Currently the system is only a 2 ms delay

and it has entered the engineering stage. Therefore

the LCAO system has potential applications in 8 to 10 m large diameter astronomy telescope.

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Keywords

references

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