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UnISIS: Laser Guide Star and Natural Guide Star Adaptive Optics System
Thompson, LA1; Teare, SW2; Xiong YH(熊耀恒)3; Castle, RM1; Chakraborty, A1,4; Gruendl, RA1; Leach, RW5; Thompson, LA (reprint author), Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA.
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2009-05
Volume121Issue:879Pages:498-511
DOI10.1086/599574
Contribution Rank第3完成单位
Indexed BySCI
AbstractUnISIS (University of Illinois Seeing Improvement System) is a versatile adaptive optics system mounted on a large optics bench at the coude focus of the Mount Wilson 2.5-m telescope. It was designed to have both laser guide star (LGS) and natural guide star (NGS) adaptive optics capabilities. The LGS side of the system relies on a pulsed UV laser with raw power of 30 W capable of creating an artificial laser star via Rayleigh scattering 18 km above the telescope. The LGS system can work at temporal response rates as high as 333 Hz-limited by the UV laser pulse rate-and the NGS system can work at rates up to 1.4 kHz. Each side of the system has its own highspeed wavefront sensor that runs separately, but in the LGS mode the NGS wavefront sensor is converted into a natural star tip-tilt sensor. The deformable mirror is conjugate to the telescope's primary mirror and has one of the most densely packed sets of actuators of any adaptive optics system currently in operation. This paper provides details of the UnISIS design and describes key updates we have made to the system. We show NGS AO-corrected images from the sky from the 900 nm z-band through the 2.12 mu m K(s) band. The highest NGS Strehl achieved to date is 0.67 at K(s) band.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6280
URL查看原文
WOS IDWOS:000266444600007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordWAVE-FRONT ESTIMATORS ; MOUNT-WILSON ; TURBULENCE COMPENSATION ; WIDE-FIELD ; PERFORMANCE ; TELESCOPE ; DESIGN ; CAMERA ; LAYER
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7460
Collection应用天文研究组
Corresponding AuthorThompson, LA (reprint author), Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA.
Affiliation1.Astronomy Department, University of Illinois Urbana-Champaign, Urbana, IL 61801
2.Electrical Engineering Department, New Mexico Tech, Socorro, NM 87801
3.Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming
4.Physical Research Laboratory, Ahmedabad 380009, India
5.Astronomy Department, San Diego State University, San Diego, CA 92182
Recommended Citation
GB/T 7714
Thompson, LA,Teare, SW,Xiong YH,et al. UnISIS: Laser Guide Star and Natural Guide Star Adaptive Optics System[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2009,121(879):498-511.
APA Thompson, LA.,Teare, SW.,Xiong YH.,Castle, RM.,Chakraborty, A.,...&Thompson, LA .(2009).UnISIS: Laser Guide Star and Natural Guide Star Adaptive Optics System.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,121(879),498-511.
MLA Thompson, LA,et al."UnISIS: Laser Guide Star and Natural Guide Star Adaptive Optics System".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 121.879(2009):498-511.
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