Two-camera wavefront estimation with a Gercheberg-Saxton based scheme

Jason Kay, Tyler D. Groff, N. Jeremy Kasdin

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

5 Scopus citations

Abstract

Most mature wavefront-estimation algorithms for high-contrast imaging rely on a-priori knowledge of the deformable mirror (DM) surface and thus are limited by uncertainty in the physics of the DM. In this paper, we review the DM diversity wavefront estimation algorithm and introduce a DM-independent method of wavefront estimation that utilizes two cameras and a Gerchberg-Saxton-based iterative phase retrieval scheme. We compare the two estimation algorithms, and we present the creation of a dark hole in the image plane using the Stroke Minimization correction algorithm and this two-camera estimation.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets IV
DOIs
StatePublished - Dec 1 2009
EventTechniques and Instrumentation for Detection of Exoplanets IV - San Diego, CA, United States
Duration: Aug 4 2009Aug 5 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7440
ISSN (Print)0277-786X

Other

OtherTechniques and Instrumentation for Detection of Exoplanets IV
CountryUnited States
CitySan Diego, CA
Period8/4/098/5/09

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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    Kay, J., Groff, T. D., & Kasdin, N. J. (2009). Two-camera wavefront estimation with a Gercheberg-Saxton based scheme. In Techniques and Instrumentation for Detection of Exoplanets IV [74400C] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7440). https://doi.org/10.1117/12.826177