High-contrast coronagraph performance in the presence of focal plane mask defects

Erkin Sidick; Stuart Shaklan; Kunjithapatham Balasubramanian; Eric Cady

doi:10.1117/12.2055004

28 August 2014 High-contrast coronagraph performance in the presence of focal plane mask defects

Erkin Sidick, Stuart Shaklan, Kunjithapatham Balasubramanian, Eric Cady

Proceedings Volume 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave; 914336 (2014) https://doi.org/10.1117/12.2055004
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

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.

Citation Download Citation

Erkin Sidick, Stuart Shaklan, Kunjithapatham Balasubramanian, and 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); https://doi.org/10.1117/12.2055004

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