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Proceedings Paper

Developing wide-field spatio-spectral interferometry for far-infrared space applications
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Paper Abstract

Interferometry is an affordable way to bring the benefits of high resolution to space far-IR astrophysics. We summarize an ongoing effort to develop and learn the practical limitations of an interferometric technique that will enable the acquisition of high-resolution far-IR integral field spectroscopic data with a single instrument in a future space-based interferometer. This technique was central to the Space Infrared Interferometric Telescope (SPIRIT) and Submillimeter Probe of the Evolution of Cosmic Structure (SPECS) space mission design concepts, and it will first be used on the Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII). Our experimental approach combines data from a laboratory optical interferometer (the Wide-field Imaging Interferometry Testbed, WIIT), computational optical system modeling, and spatio-spectral synthesis algorithm development. We summarize recent experimental results and future plans.

Paper Details

Date Published: 12 September 2012
PDF: 10 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 84450A (12 September 2012); doi: 10.1117/12.926812
Show Author Affiliations
David Leisawitz, NASA Goddard Space Flight Ctr. (United States)
Matthew R. Bolcar, NASA Goddard Space Flight Ctr. (United States)
Richard G. Lyon, NASA Goddard Space Flight Ctr. (United States)
Stephen F. Maher, NASA Goddard Space Flight Ctr. (United States)
Science Systems and Applications, Inc. (United States)
Nargess Memarsadeghi, NASA Goddard Space Flight Ctr. (United States)
Stephen A. Rinehart, NASA Goddard Space Flight Ctr. (United States)
Evan J. Sinukoff, NASA Goddard Space Flight Ctr. (United States)
Universities Space Research Association (United States)

Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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