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Proceedings Paper

Small-angle, high-contrast exoplanet imaging with the L-band AGPM vector vortex coronagraph now offered at the VLT
Author(s): Dimitri Mawet; Olivier Absil; Julien Milli; Christian Delacroix; Julien H. Girard; Jared O'Neal; Pierre Baudoz; Anthony Boccaletti; Pierre Bourget; Pontus Forsberg; Frederic Gonté; Serge Habraken; Mikael Karlsson; Markus Kasper; Anne-Marie Lagrange; Jean-Louis Lizon; Koraljka Muzic; Eduardo Peña; Richard Olivier; Nicolas Slusarenko; Lowell E. Tacconi-Garman; Jean Surdej
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Paper Abstract

In November 2012, we installed an L-band annular groove phase mask (AGPM) vector vortex coronagraph (VVC) inside NACO, the adaptive optics camera of ESO’s Very Large Telescope. The mask, made out of diamond subwavelength gratings has been commissioned, science qualified, and is now offered to the community. Here we report ground-breaking on-sky performance levels in terms of contrast, inner working angle, and discovery space. This new practical demonstration of the VVC, coming a few years after Palomar’s and recent record-breaking lab experiments in the visible (E. Serabyn et al. 2013, these proceedings), shows once again that this new-generation coronagraph has reached a high level of maturity.

Paper Details

Date Published: 26 September 2013
PDF: 9 pages
Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88640I (26 September 2013); doi: 10.1117/12.2025501
Show Author Affiliations
Dimitri Mawet, European Southern Observatory (Chile)
Jet Propulsion Lab. (United States)
Olivier Absil, Univ. de Liège (Belgium)
Julien Milli, European Southern Observatory (Chile)
IPAG, CNRS, Univ. Joseph Fourier (France)
Christian Delacroix, Univ. de Liège (Belgium)
Julien H. Girard, European Southern Observatory (Chile)
Jared O'Neal, European Southern Observatory (Chile)
Pierre Baudoz, LESIA - Observatoire de Paris (France)
Anthony Boccaletti, Univ. de Liège (Belgium)
Pierre Bourget, European Southern Observatory (Chile)
Pontus Forsberg, Uppsala Univ. (Sweden)
Frederic Gonté, European Southern Observatory (Chile)
Serge Habraken, European Southern Observatory (Chile)
Mikael Karlsson, Uppsala Univ. (Sweden)
Markus Kasper, European Southern Observatory Headquarters (Germany)
Anne-Marie Lagrange, IPAG, CNRS, Univ. Joseph Fourier (France)
Jean-Louis Lizon, European Southern Observatory (Chile)
Koraljka Muzic, European Southern Observatory (Chile)
Eduardo Peña, European Southern Observatory (Chile)
Richard Olivier, GDTech s.a., LIEGE Science Park (Belgium)
Nicolas Slusarenko, European Southern Observatory (Chile)
Lowell E. Tacconi-Garman, European Southern Observatory Headquarters (Germany)
Jean Surdej, Univ. de Liège (Belgium)

Published in SPIE Proceedings Vol. 8864:
Techniques and Instrumentation for Detection of Exoplanets VI
Stuart Shaklan, Editor(s)

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