Closed-loop wavefront correction for high-contrast imaging: The "peak-a-boo" algorithm

Amir Give'on, N. Jeremy Kasdin, Robert Joseph Vanderbei

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

3 Scopus citations

Abstract

High contrast imaging from space must overcome photon noise of the diffracted star light and scattered light from optical components defects. The very high contrast required (up to 10 -10 for terrestrial planets) puts severe requirements on the wavefront control system, as the achievable contrast is limited by the quality of the wavefront. The "Peak-a-boo" correction algorithm, presented here, is a closed loop correction method for the shaped pupil coronagraph to minimize the energy in a pre-defined region in the image where terrestrial planets would be found. The reconstruction part uses three intensity measurements in the image plane with a pinhole added to the shaped pupil for diversity. This method has been shown in simulations to converge to the nominal contrast in 2-3 iterations. In addition, the "peak-a-boo" has shown to be effective in broadband conditions.

Original languageEnglish (US)
Title of host publicationAdvanced Wavefront Control
Subtitle of host publicationMethods, Devices, and Applications IV
DOIs
StatePublished - Nov 13 2006
EventAdvanced Wavefront Control: Methods, Devices, and Applications IV - San Diego, CA, United States
Duration: Aug 14 2006Aug 15 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6306
ISSN (Print)0277-786X

Other

OtherAdvanced Wavefront Control: Methods, Devices, and Applications IV
CountryUnited States
CitySan Diego, CA
Period8/14/068/15/06

All Science Journal Classification (ASJC) codes

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

Keywords

  • Adaptive optics
  • High contrast imaging
  • Wavefront reconstruction

Fingerprint Dive into the research topics of 'Closed-loop wavefront correction for high-contrast imaging: The "peak-a-boo" algorithm'. Together they form a unique fingerprint.

  • Cite this

    Give'on, A., Kasdin, N. J., & Vanderbei, R. J. (2006). Closed-loop wavefront correction for high-contrast imaging: The "peak-a-boo" algorithm. In Advanced Wavefront Control: Methods, Devices, and Applications IV [63060T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6306). https://doi.org/10.1117/12.673365