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Review and update of WFIRST coronagraph instrument design and technology (Conference Presentation)
Author(s): Rick Demers

Paper Abstract

Review and update of WFIRST Coronagraph Instrument Design and Technology Richard T. Demers Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena 91109, CA ABSTRACT NASA’s Wide Field InfraRed Survey Telescope (WFIRST) is a proposed flagship astrophysical observatory that would investigate dark energy, carry out wide-field near infrared (NIR) galactic surveys, and image and characterize extrasolar planets in visible reflected light. The WFIRST observatory would utilize an existing 2.4-m aperture telescope integrated with a baseline Coronagraph Instrument to image and spectrally characterize extrasolar planets in visible reflected light. The WFIRST Coronagraph is designed to directly image and characterize mature planets analogous to those in our solar system. In so doing it would advance what is currently possible in exoplanet spectral characterization and imaging using innovative wavefront and pointing jitter sensing and control algorithms, photolithographically fabricated pupil and occulting masks, precise mask positioning mechanisms, a fast steering mirror mechanism, state of the art polished optics, high actuator count deformable mirrors, electron multiplying CCDs and a lenslet-based integral field spectrograph. We present the system design concept and an overview of the current formulation phase design including structural, thermal, optical, pointing and wavefront controls as well as development of deformable mirrors and detectors for the science and engineering cameras.

Paper Details

Date Published: 10 July 2018
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Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106982J (10 July 2018); doi: 10.1117/12.2315632
Show Author Affiliations
Rick Demers, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 10698:
Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave
Makenzie Lystrup; Howard A. MacEwen; Giovanni G. Fazio; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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