Near-infrared wavefront sensing

Peter Wizinowich, Mark Chun, Dimitri Mawet, Guido Agapito, Richard Dekany, Simone Esposito, Thierry Fusco, Olivier Guyon, Donald Hall, Cedric Plantet, Francois Rigaut

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationAdaptive Optics Systems V
EditorsEnrico Marchetti, Jean-Pierre Veran, Laird M. Close
PublisherSPIE
ISBN (Electronic)9781510601970
DOIs
StatePublished - 2016
Externally publishedYes
EventAdaptive Optics Systems V - Edinburgh, United Kingdom
Duration: Jun 26 2016Jul 1 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9909
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAdaptive Optics Systems V
Country/TerritoryUnited Kingdom
CityEdinburgh
Period6/26/167/1/16

Keywords

  • Adaptive Optics
  • Keck
  • LIFT
  • Near Infrared
  • Pyramid
  • Tip-Tilt Sensing
  • Wavefront Sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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