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Proceedings Paper

Non-redundant masking ideas on JWST
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Paper Abstract

We present several engineering and algorithmic aspects of non-redundant masking (NRM) as they pertain to the James Webb Space Telescope (JWST). NRM's fundamental data structures have multiple uses in wavefront sensing as well in as high resolution imaging. Kernel phases are a full aperture generalization of NRM applicable to moderate and high Strehl ratio images. Eigenphases, the complement to kernel phases, provide wavefront sensing with single in-focus images. Thus this set of phases is relevant to wavefront sensing with routine science images on any Nyquist-sampled science camera on JWST. We attempt to organize these apparently diverse aspects of such Fizeau interferometry into an inter-related picture in order to facilitate their development and potential use on JWST and future space telescopes.

Paper Details

Date Published: 28 August 2014
PDF: 8 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433S (28 August 2014); doi: 10.1117/12.2056639
Show Author Affiliations
Anand Sivaramakrishnan, Space Telescope Science Institute (United States)
Anthony Cheetham, The Univ. of Sydney (Australia)
Alexandra Z. Greenbaum, Johns Hopkins Univ. (United States)
Peter G. Tuthill, The Univ. of Sydney (Australia)
D. Scott Acton, Ball Aerospace & Technologies Corp. (United States)
Benjamin Pope, Johns Hopkins Univ. (United States)
Univ. of Oxford (United Kingdom)
Frantz Martinache, Lab. Lagrange, CNRS, Observatoire de la Côte d’Azur (France)
Deepashri Thatte, Space Telescope Science Institute (United States)
Edmund P. Nelan, Space Telescope Science Institute (United States)

Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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