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Shaped Pupil Coronagraph: Disk Science Mask Experimental Verification and Testing

Show simple item record Marx, David Cady, Eric Riggs, A.J. Eldorado Prada, Camilo Kern, Brian Seo, Byoung-Joon Shi, Fang 2020-05-14T22:55:15Z 2020-05-14T22:55:15Z 2018-06-12
dc.identifier.citation SPIE Astronomical Telescopes + Instrumentation, Austin, Texas, June 12 - 14, 2018 en_US
dc.identifier.clearanceno 18-3340
dc.description.abstract The Shaped Pupil Coronagraph (SPC) is one of the two operating modes of the baseline coronagraph instrument for the proposed WFIRST mission. While in SPC mode, multiple sets of shaped pupil masks and focal plane masks would be available for various imaging tasks. The disk science mask set (SPC-DSM) is designed for exozodiacal disk science. With a 360 degree high contrast field of view, extending up to 20 λ/D, the SPC-DSM provides a powerful tool to study exozodiacal dust clouds associated with stellar debris disks to gain insight of the exoplanet formation and stellar disk dynamics. We will describe the performance verification and demonstration of the SPC-DSM coronagraph as tested in the high contrast imaging testbed (HCIT) at JPL. The goal of the testbed demonstration is an average contrast of 5e-9 over a 10% bandwidth centered at 565nm, in a field of view extending from 6.5 λ/D to 20 λ/D. We will discuss electric field conjugation, performance metrics, and model agreement as applied to the SPC-DSM. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2018 en_US
dc.subject Coronagraph en_US
dc.subject WFIRST en_US
dc.title Shaped Pupil Coronagraph: Disk Science Mask Experimental Verification and Testing en_US
dc.type Preprint en_US

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