Special Section on WFIRST-AFTA Coronagraphs

Numerical modeling of the proposed WFIRST-AFTA coronagraphs and their predicted performances

[+] Author Affiliations
John Krist, Bijan Nemati, Bertrand Mennesson

California Institute of Technology, Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, California 91109, United States

J. Astron. Telesc. Instrum. Syst. 2(1), 011003 (Oct 28, 2015). doi:10.1117/1.JATIS.2.1.011003
History: Received May 30, 2015; Accepted September 11, 2015
Text Size: A A A

Abstract.  The WFIRST-AFTA 2.37 m telescope will provide the opportunity to host a coronagraph for the imaging and spectroscopy of planets and disks in the next decade. The telescope, however, is not ideal, given its obscured aperture. Only recently have coronagraph designs been thoroughly investigated that can efficiently work with this configuration. Three coronagraph designs, the hybrid Lyot, shaped pupil, and phase-induced amplitude apodization complex mask coronagraph have been selected for further development by the Astrophysics Focused Telescope Asset project. Real-world testbed demonstrations of these have just begun, so for now, the most reliable means of evaluating their potential performance comes from numerical modeling incorporating diffraction propagation, realistic system models, and simulated wavefront sensing and control. Here, we present the methods of performance evaluation and results for the current coronagraph designs.

© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

John Krist ; Bijan Nemati and Bertrand Mennesson
"Numerical modeling of the proposed WFIRST-AFTA coronagraphs and their predicted performances", J. Astron. Telesc. Instrum. Syst. 2(1), 011003 (Oct 28, 2015). ; http://dx.doi.org/10.1117/1.JATIS.2.1.011003


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.