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Numerically optimized coronagraph designs for the Habitable Exoplanet Imaging Mission (HabEx) concept

Eldorado Riggs, A. J. and Ruane, Garreth and Fogarty, Kevin and Pueyo, Laurent and Balasubramanian, Kunjithapatham (2018) Numerically optimized coronagraph designs for the Habitable Exoplanet Imaging Mission (HabEx) concept. In: Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.10698. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 106980V. ISBN 9781510619494. https://resolver.caltech.edu/CaltechAUTHORS:20181207-083716154

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Abstract

The primary science goal of the Habitable Exoplanet Imaging Mission (HabEx), one of four candidate flagship missions under investigation, is to image and spectrally characterize Earth-like exoplanets. It is well known that pupil obscurations degrade coronagraphic performance and complicate coronagraph design, so HabEx is planned to have an off-axis, unobscured primary mirror. We utilize the circular symmetry of the aperture to investigate 1D-radial coronagraph optimization methods that are prohibitively time-consuming or intractable in 2D, such as diffractive pupil remapping and concurrent, multi-plane optimization. We also directly constrain sensitivities to dynamic, low-order Zernike aberrations, which are separable in polar coordinates and can thus be propagated as 1D-radial integrals. The mask technologies in our designs claim heritage from the extensive modeling and testbed experiments performed by the Wide-Field Infrared Survey Telescope (WFIRST) Coronagraph Instrument (CGI) project. In this paper, we detail our optimization methods and outline future work to complete our design survey.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2313843DOIArticle
ORCID:
AuthorORCID
Ruane, Garreth0000-0003-4769-1665
Fogarty, Kevin0000-0002-2691-2476
Pueyo, Laurent0000-0003-3818-408X
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). The HabEx Concept design is pre-decisional information presented for planning and discussion purposes only. This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:HabEx, coronagraph, exoplanet, wavefront control, optimization
Series Name:Proceedings of SPIE
Issue or Number:10698
Record Number:CaltechAUTHORS:20181207-083716154
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20181207-083716154
Official Citation:A J Eldorado Riggs, Garreth Ruane, Kevin Fogarty, Laurent Pueyo, Kunjithapatham Balasubramanian, "Numerically optimized coronagraph designs for the Habitable Exoplanet Imaging Mission (HabEx) concept," Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106980V (9 August 2018); doi: 10.1117/12.2313843
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91552
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Dec 2018 22:28
Last Modified:09 Oct 2019 22:30

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