The WFIRST/AFTA coronagraph instrument optical design

Hong Tang; Mayer Rud; Richard Demers; Renaud Goullioud; John Krist; Fang Shi; Feng Zhao

doi:10.1117/12.2188446

16 September 2015 The WFIRST/AFTA coronagraph instrument optical design

Hong Tang, Mayer Rud, Richard Demers, Renaud Goullioud, John Krist, Fang Shi, Feng Zhao

Proceedings Volume 9605, Techniques and Instrumentation for Detection of Exoplanets VII; 960504 (2015) https://doi.org/10.1117/12.2188446
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The most recent concept for the Wide Field Infrared Survey Telescope (WFIRST) Design Reference Mission (DRM) features an instrument that will perform exoplanet detection via coronagraphy of the host star. This observatory is based on the existing Astrophysics Focused Telescope Asset’s (AFTA) 2.4-meter telescope. The WFIRST/AFTA Coronagraph Instrument combines the Hybrid Lyot and Shaped Pupil Coronagraphs to meet the science requirements. The cycle 5 optical design fits the required enclosure and accommodates both coronagraphic architectures. We present the optical performance including throughput of both the imaging and the IFS channels, the wavefront error at the first pupil, and polarization effects from optical coatings.

Citation Download Citation

Hong Tang, Mayer Rud, Richard Demers, Renaud Goullioud, John Krist, Fang Shi, and Feng Zhao "The WFIRST/AFTA coronagraph instrument optical design", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 960504 (16 September 2015); https://doi.org/10.1117/12.2188446

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