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Proceedings Paper

An overview of WFIRST/AFTA coronagraph optical modeling
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Paper Abstract

The WFIRST/AFTA 2.4 m space telescope currently under study includes a stellar coronagraph for the imaging and spectral characterization of extrasolar planets. Based largely on performance predictions from end-to-end optical propagation modeling, promising coronagraphic methods were selected in late 2013 for further consideration for use on AFTA. Since those downselect analyses further modeling work has been done on evaluating refined coronagraph designs, wavefront sensing and control, detector representation, and time-dependent effects. Thermal, structural, ray trace, and diffraction propagation models are used in these studies. Presented here is the progress to date and plans for future analyses.

Paper Details

Date Published: 4 September 2015
PDF: 16 pages
Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 960505 (4 September 2015); doi: 10.1117/12.2188361
Show Author Affiliations
John Krist, Jet Propulsion Lab. (United States)
Bijan Nemati, Jet Propulsion Lab. (United States)
Hanying Zhou, Jet Propulsion Lab. (United States)
Erkin Sidick, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 9605:
Techniques and Instrumentation for Detection of Exoplanets VII
Stuart Shaklan, Editor(s)

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