Shaped pupil coronagraph: disk science mask experimental verification and testing

David Marx; Eric Cady; A. J. Eldorado Riggs; Camilo Prada; Brian Kern; Byoung-Joon Seo; Fang Shi

doi:10.1117/12.2312602

16 July 2018 Shaped pupil coronagraph: disk science mask experimental verification and testing

David Marx, Eric Cady, A. J. Eldorado Riggs, Camilo Prada, Brian Kern, Byoung-Joon Seo, Fang Shi

Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106981E (2018) https://doi.org/10.1117/12.2312602
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

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.

Conference Presentation

Citation Download Citation

David Marx, Eric Cady, A. J. Eldorado Riggs, Camilo Prada, Brian Kern, Byoung-Joon Seo, and Fang Shi "Shaped pupil coronagraph: disk science mask experimental verification and testing", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106981E (16 July 2018); https://doi.org/10.1117/12.2312602

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