Laboratory performance of the shaped pupil coronagraphic architecture for the WFIRST/AFTA coronagraph

Eric Cady, Camilo Mejia Prada, Xin An, Kunjithapatham Balasubramanian, Rosemary Diaz, N. Jeremy Kasdin, Brian Kern, Andreas Kuhnert, Bijan Nemati, Keith Patterson, Ilya Poberezhskiy, A. J.Eldorado Riggs, Daniel Ryan, Hanying Zhou, Robert Zimmer, Neil T. Zimmerman

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

5 Scopus citations

Abstract

One of the two primary architectures being tested for the WFIRST-AFTA coronagraph instrument is the shaped pupil coronagraph, which uses a binary aperture in a pupil plane to create localized regions of high contrast in a subsequent focal plane. The aperture shapes are determined by optimization, and can be designed to work in the presence of secondary obscurations and spiders-an important consideration for coronagraphy with WFIRST-AFTA. We present the current performance of the shaped pupil testbed, including the results of AFTA Milestone 2, in which as & 6 × 10-9 contrast was achieved in three independent runs starting from a neutral setting.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets VII
EditorsStuart Shaklan
PublisherSPIE
ISBN (Electronic)9781628417715
DOIs
StatePublished - Jan 1 2015
EventTechniques and Instrumentation for Detection of Exoplanets VII - San Diego, United States
Duration: Aug 10 2015Aug 13 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9605
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherTechniques and Instrumentation for Detection of Exoplanets VII
CountryUnited States
CitySan Diego
Period8/10/158/13/15

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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  • Cite this

    Cady, E., Mejia Prada, C., An, X., Balasubramanian, K., Diaz, R., Kasdin, N. J., Kern, B., Kuhnert, A., Nemati, B., Patterson, K., Poberezhskiy, I., Riggs, A. J. E., Ryan, D., Zhou, H., Zimmer, R., & Zimmerman, N. T. (2015). Laboratory performance of the shaped pupil coronagraphic architecture for the WFIRST/AFTA coronagraph. In S. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets VII [96050B] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9605). SPIE. https://doi.org/10.1117/12.2189113