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Proceedings Paper

Laboratory demonstrations of high-contrast imaging for space coronagraphy
Author(s): John Trauger; Amir Give'on; Brian Gordon; Brian Kern; Andreas Kuhnert; Dwight Moody; Albert Niessner; Fang Shi; Daniel Wilson; Chris Burrows
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Paper Abstract

Space coronagraphy is a promising method for direct imaging of planetary systems orbiting the nearby stars. The High Contrast Imaging Testbed is a laboratory facility at JPL that integrates the essential hardware and control algorithms needed for suppression of diffracted and scattered light near a target star that would otherwise obscure an associated exo-planetary system. Stable suppression of starlight by a factor of 5×10−10 has been demonstrated consistently in narrowband light over fields of view as close as four Airy radii from the star. Recent progress includes the extension of spectral bandwidths to 10% at contrast levels of 2×10−9, with work in progress to further improve contrast levels, bandwidth, and instrument throughput. We summarize recent laboratory results and outline future directions. This laboratory experience is used to refine computational models, leading to performance and tolerance predictions for future space mission architectures.

Paper Details

Date Published: 19 September 2007
PDF: 12 pages
Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66930X (19 September 2007); doi: 10.1117/12.735004
Show Author Affiliations
John Trauger, Jet Propulsion Lab. (United States)
Amir Give'on, Jet Propulsion Lab. (United States)
Brian Gordon, Jet Propulsion Lab. (United States)
Brian Kern, Jet Propulsion Lab. (United States)
Andreas Kuhnert, Jet Propulsion Lab. (United States)
Dwight Moody, Jet Propulsion Lab. (United States)
Albert Niessner, Jet Propulsion Lab. (United States)
Fang Shi, Jet Propulsion Lab. (United States)
Daniel Wilson, Jet Propulsion Lab. (United States)
Chris Burrows, Metajiva (United States)

Published in SPIE Proceedings Vol. 6693:
Techniques and Instrumentation for Detection of Exoplanets III
Daniel R. Coulter, Editor(s)

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