Wavefront correction in a shaped-pupil coronagraph using a gerchberg-saxton-based estimation scheme

Jason Kay, N. Jeremy Kasdin, Ruslan Belikov

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

5 Scopus citations

Abstract

The detection of extra-solar terrestrial planets requires the use of space-based high-contrast imaging. Stellar photon noise as well as light thrown about by system aberrations necessitate the use of a high quality light suppression system and a method for wavefront correction. We present here a wavefront estimation scheme to be used with estimate-based correction for the shaped pupil coronagraph. In order to properly estimate the field in a reimaged pupil plane, we employ the use of the iterative Gerchberg-Saxton estimation algorithm between it and a second-focus image plane. We utilize the correction algorithm to overcome an ambiguity inherent in Gerchberg-Saxton estimation.

Original languageEnglish (US)
Title of host publicationAstronomical Adaptive Optics Systems and Applications III
DOIs
StatePublished - 2007
EventAstronomical Adaptive Optics Systems and Applications III - San Diego, CA, United States
Duration: Aug 29 2007Aug 30 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6691
ISSN (Print)0277-786X

Other

OtherAstronomical Adaptive Optics Systems and Applications III
CountryUnited States
CitySan Diego, CA
Period8/29/078/30/07

All Science Journal Classification (ASJC) codes

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

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