Subaperture phase reconstruction from a Hartmann wavefront sensor by phase retrieval method for application in EUV adaptive optics

2012 ◽  
Author(s):  
A. Polo ◽  
N. van Marrewijk ◽  
S. F. Pereira ◽  
H. P. Urbach
Keyword(s):  
Adaptive Optics ◽  
Phase Retrieval ◽  
Wavefront Sensor ◽  
Phase Reconstruction ◽  
Retrieval Method

scholarly journals Determination of wavefront structure for a Hartmann Wavefront Sensor using a phase-retrieval method

2012 ◽  
Vol 20 (7) ◽  
pp. 7822 ◽  
Author(s):  
A. Polo ◽  
V. Kutchoukov ◽  
F. Bociort ◽  
S.F. Pereira ◽  
H.P. Urbach
Keyword(s):  
Phase Retrieval ◽  
Wavefront Sensor ◽  
Retrieval Method

High accuracy phase retrieval method research based on Shack-Hartmann wavefront sensor

2016 ◽  
Author(s):  
Wenhua Zeng ◽  
Yang Lv ◽  
Haotong Ma ◽  
Yu Ning ◽  
Shaojun Du
Keyword(s):  
Phase Retrieval ◽  
High Accuracy ◽  
Wavefront Sensor ◽  
Retrieval Method

scholarly journals Comparison of wavefront sensor models for simulation of adaptive optics

2009 ◽  
Vol 17 (22) ◽  
pp. 20575 ◽  
Author(s):  
Zhiwen Wu ◽  
Anita Enmark ◽  
Mette Owner-Petersen ◽  
Torben Andersen
Keyword(s):  
Adaptive Optics ◽  
Wavefront Sensor ◽  
Sensor Models

scholarly journals Multiconjugate Adaptive Optics for Astronomy

2018 ◽  
Vol 56 (1) ◽  
pp. 277-314 ◽  
Author(s):  
François Rigaut ◽  
Benoit Neichel
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Phase Reconstruction ◽  
Large Telescope ◽  
Wavefront Sensors ◽  
Error Sources ◽  
New Concepts ◽  
Year 2000 ◽  
Current Systems ◽  
Solar Astronomy

Since the year 2000, adaptive optics (AO) has seen the emergence of a variety of new concepts addressing particular science needs; multiconjugate adaptive optics (MCAO) is one of them. By correcting the atmospheric turbulence in 3D using several wavefront sensors and a tomographic phase reconstruction approach, MCAO aims to provide uniform diffraction limited images in the near-infrared over fields of view larger than 1 arcmin2, i.e., 10 to 20 times larger in area than classical single conjugated AO. In this review, we give a brief reminder of the AO principles and limitations, and then focus on aspects particular to MCAO, such as tomography and specific MCAO error sources. We present examples and results from past or current systems: MAD (Multiconjugate Adaptive Optics Demonstrator) and GeMS (Gemini MCAO System) for nighttime astronomy and the AO system, at Big Bear for solar astronomy. We examine MCAO performance (Strehl ratio up to 40% in H band and full width at half maximum down to 52 mas in the case of MCAO), with a particular focus on photometric and astrometric accuracy, and conclude with considerations on the future of MCAO in the Extremely Large Telescope and post–HST era.

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