Wavefront control with the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system

Olivier Guyon, Frantz Martinache, Christophe Clergeon, Robert Russell, Tyler Groff, Vincent Garrel

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

32 Scopus citations

Abstract

The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system uses advanced coronagraphic technique for high contrast imaging of exoplanets and disks as close as 1 lambda/D from the host star. In addition to unusual optics, achieving high contrast at this small angular separation requires a wavefront sensing and control architecture which is optimized for exquisite control and calibration of low order aberrations. The SCExAO system was thus designed to include the wavefront sensors required for bias-free high sensitivity and high speed wavefront measurements. Information is combined from two infrared wavefront sensors and a fast visible wavefront sensors to drive a single MEMS type deformable mirror mounted on a tip-tilt mount. The wavefront sensing and control architecture is highly integrated with the coronagraph system.

Original languageEnglish (US)
Title of host publicationAstronomical Adaptive Optics Systems and Applications IV
DOIs
StatePublished - Oct 21 2011
EventAstronomical Adaptive Optics Systems and Applications IV - San Diego, CA, United States
Duration: Aug 21 2011Aug 24 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8149
ISSN (Print)0277-786X

Other

OtherAstronomical Adaptive Optics Systems and Applications IV
CountryUnited States
CitySan Diego, CA
Period8/21/118/24/11

Keywords

  • Coronagraphy
  • Exoplanets

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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  • Cite this

    Guyon, O., Martinache, F., Clergeon, C., Russell, R., Groff, T., & Garrel, V. (2011). Wavefront control with the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. In Astronomical Adaptive Optics Systems and Applications IV [814908] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8149). https://doi.org/10.1117/12.894293