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Proceedings Paper

End-to-end simulation of high-contrast imaging systems: methods and results for the PICTURE mission family
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Paper Abstract

We describe a set of numerical approaches to modeling the performance of space flight high-contrast imaging payloads. Mission design for high-contrast imaging requires numerical wavefront error propagation to ensure accurate component specifications. For constructed instruments, wavelength and angle-dependent throughput and contrast models allow detailed simulations of science observations, allowing mission planners to select the most productive science targets. The PICTURE family of missions seek to quantify the optical brightness of scattered light from extrasolar debris disks via several high-contrast imaging techniques: sounding rocket (the Planet Imaging Concept Testbed Using a Rocket Experiment) and balloon flights of a visible nulling coronagraph, as well as a balloon flight of a vector vortex coronagraph (the Planetary Imaging Concept Testbed Using a Recoverable Experiment - Coronagraph, PICTURE-C). The rocket mission employs an on-axis 0.5m Gregorian telescope, while the balloon flights will share an unobstructed off-axis 0.6m Gregorian. This work details the flexible approach to polychromatic, end-to-end physical optics simulations used for both the balloon vector vortex coronagraph and rocket visible nulling coronagraph missions. We show the preliminary PICTURE-C telescope and vector vortex coronagraph design will achieve 10-8 contrast without post-processing as limited by realistic optics, but not considering polarization or low-order errors. Simulated science observations of the predicted warm ring around Epsilon Eridani illustrate the performance of both missions.

Paper Details

Date Published: 16 September 2015
PDF: 13 pages
Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96051A (16 September 2015); doi: 10.1117/12.2187262
Show Author Affiliations
Ewan S. Douglas, Boston Univ. (United States)
Kuravi Hewawasam, Univ. of Massachusetts Lowell (United States)
Christopher B. Mendillo, Univ. of Massachusetts Lowell (United States)
Kerri L. Cahoy, Massachusetts Institute of Technology (United States)
Timothy A. Cook, Univ. of Massachusetts Lowell (United States)
Susanna C. Finn, Univ. of Massachusetts Lowell (United States)
Glenn A. Howe, Univ. of Massachusetts Lowell (United States)
Marc J. Kuchner, NASA Goddard Space Flight Ctr. (United States)
Nikole K. Lewis, Space Telescope Science Institute (United States)
Anne D. Marinan, Massachusetts Institute of Technology (United States)
Dimitri Mawet, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
Supriya Chakrabarti, Univ. of Massachusetts Lowell (United States)


Published in SPIE Proceedings Vol. 9605:
Techniques and Instrumentation for Detection of Exoplanets VII
Stuart Shaklan, Editor(s)

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