Near-infrared wavefront sensing
Date Issued
2016
Author(s)
Wizinowich, Peter
•
Chun, Mark
•
Mawet, Dimitri
•
•
Dekany, Richard
•
•
Fusco, Thierry
•
Guyon, Olivier
•
Hall, Donald
•
•
Rigaut, Francois
Abstract
We discuss the advantages of wavefront sensing at near-infrared (IR) wavelengths with low-noise detector technologies that have recently become available. In this paper, we consider low order sensing with laser guide star (LGS) adaptive optics (AO) and high order sensing with natural guide star (NGS) AO. We then turn to the application of near-IR sensing with the W. M. Keck Observatory (WMKO) AO systems for science and as a demonstrator for similar systems on extremely large telescopes (ELTs). These demonstrations are based upon an LGS AO near-IR tip-tilt-focus sensor and our collaboration to implement a near-IR pyramid wavefront sensor (PWFS) for a NGS AO L-band coronagraphic imaging survey to identify exoplanet candidates.
Coverage
Adaptive Optics Systems V
All editors
Marchetti, Enrico; Close, Laird M.; Véran, Jean-Pierre
Series
Volume
9909
Start page
990915
Conferenece
Adaptive Optics Systems V
Conferenece place
Edinburgh, UK
Conferenece date
26 June-1 July, 2016
Issn Identifier
0277-786X
Ads BibCode
2016SPIE.9909E..15W
Rights
open.access
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