28 August 2014 Non-redundant masking ideas on JWST
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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.
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Anand Sivaramakrishnan, Anand Sivaramakrishnan, Anthony Cheetham, Anthony Cheetham, Alexandra Z. Greenbaum, Alexandra Z. Greenbaum, Peter G. Tuthill, Peter G. Tuthill, D. Scott Acton, D. Scott Acton, Benjamin Pope, Benjamin Pope, Frantz Martinache, Frantz Martinache, Deepashri Thatte, Deepashri Thatte, Edmund P. Nelan, Edmund P. Nelan, } "Non-redundant masking ideas on JWST", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433S (28 August 2014); doi: 10.1117/12.2056639; https://doi.org/10.1117/12.2056639
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