Apodized vortex coronagraph designs for segmented aperture telescopes

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.

To appear in SPIE proceedings vol. 9912

References in corpus (4)

• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog
• On-sky speckle nulling demonstration at small angular separation with SCExAO
• Apodized phase mask coronagraphs for arbitrary apertures. II. Comprehensive review of solutions for the vortex coronagraph

Cited by in corpus (3)

• The W. M. Keck Observatory infrared vortex coronagraph and a first image of HIP79124 B
• Active correction of aperture discontinuities - optimized stroke minimization II: optimization for future missions
• Active correction of aperture discontinuities - optimized stroke minimization I: a new adaptive interaction matrix algorithm