22 July 2016 Apodized vortex coronagraph designs for segmented aperture telescopes
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Abstract
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant coronagraph designs to suppress starlight and image nearby faint objects, such as exoplanets and circumstellar disks. The ideal performance and complexity of the optical systems depends strongly on the shape of the telescope aperture. Unfortunately, large primary mirrors tend to be segmented and have various obstructions, which limit the performance of most conventional coronagraph designs. We present a new family of vortex coronagraphs with numerically-optimized gray-scale apodizers that provide the sensitivity needed to directly image faint exoplanets with large, segmented aperture telescopes, including the Thirty Meter Telescope (TMT) as well as potential next-generation space telescopes.
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Garreth Ruane, Jeffery Jewell, Dimitri Mawet, Laurent Pueyo, Stuart Shaklan, "Apodized vortex coronagraph designs for segmented aperture telescopes", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99122L (22 July 2016); doi: 10.1117/12.2231715; https://doi.org/10.1117/12.2231715
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