28 August 2014 High-contrast coronagraph performance in the presence of focal plane mask defects
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We have carried out a study of the performance of high-contrast coronagraphs in the presence of mask defects. We have considered the effects of opaque and dielectric particles of various dimensions, as well as systematic mask fabrication errors and the limitations of material properties in creating dark holes. We employ sequential deformable mirrors to compensate for phase and amplitude errors, and show the limitations of this approach in the presence of coronagraph image-mask defects.
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Erkin Sidick, Erkin Sidick, Stuart Shaklan, Stuart Shaklan, Kunjithapatham Balasubramanian, Kunjithapatham Balasubramanian, Eric Cady, Eric Cady, } "High-contrast coronagraph performance in the presence of focal plane mask defects", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914336 (28 August 2014); doi: 10.1117/12.2055004; https://doi.org/10.1117/12.2055004

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