Focal plane wavefront sensing on SUBARU/SCExAO

S. Vievard, S. P. Bos, F. Cassaing, T. Currie, V. Deo, O. Guyon, N. Jovanovic, C. U. Keller, M. Lamb, C. Lopez, J. Lozi, F. Martinache, K. Miller, A. Montmerle-Bonnefois, L. M. Mugnier, M. N'Diaye, B. Norris, A. Sahoo, J. F. Sauvage, N. SkafF. Snik, M. J. Wilby, A. Wong

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

3 Scopus citations


Focal plane wavefront sensing is an elegant solution for wavefront sensing since near-focal images of any source taken by a detector show distortions in the presence of aberrations. Non-Common Path Aberrations and the Low Wind Effect both have the ability to limit the achievable contrast of the finest coronagraphs coupled with the best extreme adaptive optics systems. To correct for these aberrations, the Subaru Coronagraphic Extreme Adaptive Optics instrument hosts many focal plane wavefront sensors using detectors as close to the science detector as possible. We present seven of them and compare their implementation and efficiency on SCExAO. This work will be critical for wavefront sensing on next generation of extremely large telescopes that might present similar limitations.

Original languageEnglish (US)
Title of host publicationAdaptive Optics Systems VII
EditorsLaura Schreiber, Dirk Schmidt, Elise Vernet
ISBN (Electronic)9781510636835
StatePublished - 2020
EventAdaptive Optics Systems VII 2020 - Virtual, Online, United States
Duration: Dec 14 2020Dec 22 2020

Publication series

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


ConferenceAdaptive Optics Systems VII 2020
Country/TerritoryUnited States
CityVirtual, Online


  • Coronography
  • Focal plane wavefront sensing
  • High contrast imaging
  • Low Wind Effect
  • SCExAO
  • Spiders

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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