Laboratory demonstration of a mid-infrared AGPM vector vortex coronagraph

@inproceedings{Delacroix2013LaboratoryDO,
  title={Laboratory demonstration of a mid-infrared AGPM vector vortex coronagraph},
  author={Christian Delacroix and Olivier Absil and Pontus Forsberg and Dimitri Mawet and Valentin Christiaens and Michael Karlsson and Anthony Boccaletti and Pierre Baudoz and Markku Kuittinen and Ismo Vartiainen and Jean Surdej and Serge L. Habraken},
  year={2013}
}
Context. Coronagraphy is a powerful technique to achieve high contrast imaging, hence to image faint companions around bright targets. Various concepts have been used in the visible and near-infrared regimes, while coronagraphic applications in the mid-infrared nowadays remain largely unexplored. Vector vortex phase masks based on concentric subwavelength gratings show great promise for such applications. Aims. We aim at producing and validating the first high-performance broadband focal plane… CONTINUE READING

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