Solar adaptive optics
Solar adaptive optics
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DOI：
10.1117/12.390301
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发表时间：
2000-07
影响因子：
6.5
通讯作者：
T. Rimmele
中科院分区：
文献类型：
--
作者：
T. Rimmele
对太阳的高分辨率观测对于理解基本的天体物理过程至关重要。自适应光学(AO)是太阳天文学家利用现有地面望远镜实现衍射受限观测的重要工具。AO也是国际太阳天文学家计划建造的未来4M级先进太阳望远镜(AST)所需的关键技术。回顾了太阳自适应光学系统的发展历史，并给出了最近成功演示太阳自适应光学系统的结果。太阳声光和夜间声光的主要区别是必须应用不同的、更精细的波前传感技术，以便使用太阳颗粒作为目标来测量波前像差。讨论了解决这个问题的不同方法。多共轭声光被认为是一种在比等距面片大得多的视场(FOV)上获得衍射极限分辨率的技术。太阳是MCAO发展和应用的理想对象。
High resolution observations of the Sun are of key importance in understanding fundamental astrophysical processes. Adaptive optics (AO) is an important tool that allows solar astronomers to achieve diffraction limited observations from existing ground based telescopes. AO is also a key technology required for a future 4m-class Advanced Solar Telescope (AST) that the international community of solar astronomers is planning to build. The history of the development of solar AO is reviewed and results from recent successful demonstrations of solar AO systems are presented. The main difference between solar AO and night time AO is the different, and more elaborate wavefront sensing technique that has to be applied in order to measure wavefront aberrations using solar granulation as a target. Different approaches to this problem are discussed. Multi-conjugate AO has been proposed as a technique to achieve diffraction limited resolution over a field-of-view (FOV) significantly larger than the isoplanatic patch. The Sun is an ideal object for the development and application of MCAO.