Improvements on Fresnel arrays for high contrast imaging

  title={Improvements on Fresnel arrays for high contrast imaging},
  author={Roux Wilhem and Koechlin Laurent},
  journal={Experimental Astronomy},
The Fresnel Diffractive Array Imager (FDAI) is based on a new optical concept for space telescopes, developed at Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France. For the visible and near-infrared it has already proven its performances in resolution and dynamic range. We propose it now for astrophysical applications in the ultraviolet with apertures from 6 to 30 meters, aimed at imaging in UV faint astrophysical sources close to bright ones, as well as other… 
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