Hierarchical wave-front sensing

被引：5
|
作者：
Le Roux, B [1 ]
Coyne, J [1 ]
Ragazzoni, R [1 ]
机构：
[1] Osserv Astrofis Arcetri, I-55125 Florence, Italy
来源：
APPLIED OPTICS | 2005年 / 44卷 / 02期
关键词：
D O I：
10.1364/AO.44.000171
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a new wave-front sensing technique for adaptive optics based on use of several wave-front sensors dedicated to the sensing of a different range of spatial frequencies. We call it a hierarchical wave-front sensor. We present the concept of a hierarchical wave-front sensor and apply it to the Shack-Hartmann sensor. We show the gain that is expected with two Shack-Hartmann sensors. We obtain a gain that increases with the size of the largest sensor, and we detail the application of hierarchical wave-front sensing to extreme adaptive optics and extremely large telescopes. (C) 2005 Optical Society of America.
引用
收藏
页码：171 / 177
页数：7
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