An overview of WFIRST/AFTA coronagraph optical modeling

John Krist; Bijan Nemati; Hanying Zhou; Erkin Sidick

doi:10.1117/12.2188361

4 September 2015 An overview of WFIRST/AFTA coronagraph optical modeling

John Krist, Bijan Nemati, Hanying Zhou, Erkin Sidick

Proceedings Volume 9605, Techniques and Instrumentation for Detection of Exoplanets VII; 960505 (2015) https://doi.org/10.1117/12.2188361
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

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.

Citation Download Citation

John Krist, Bijan Nemati, Hanying Zhou, and Erkin Sidick "An overview of WFIRST/AFTA coronagraph optical modeling", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 960505 (4 September 2015); https://doi.org/10.1117/12.2188361

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