C
Charles Hanot
Researcher at University of Liège
Publications - 35
Citations - 793
Charles Hanot is an academic researcher from University of Liège. The author has contributed to research in topics: Coronagraph & Interferometry. The author has an hindex of 14, co-authored 35 publications receiving 760 citations.
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Journal ArticleDOI
A near-infrared interferometric survey of debris-disc stars - III. First statistics based on 42 stars observed with CHARA/FLUOR
Olivier Absil,Denis Defrere,Denis Defrere,V. Coudé du Foresto,E. Di Folco,Antoine Mérand,Jean-Charles Augereau,Steve Ertel,Charles Hanot,Pierre Kervella,B. Mollier,Nicholas J. Scott,Nicholas J. Scott,Xiao Che,John D. Monnier,Nathalie D. Thureau,Peter G. Tuthill,T. ten Brummelaar,Harold A. McAlister,Judit Sturmann,Laszlo Sturmann,Nils H. Turner +21 more
TL;DR: In this paper, high-precision K-band visibilities obtained with the FLUOR interferometer on the shortest baseline of the CHARA array were compared with the expected visibility of the stellar photosphere to assess whether there is an additional, fully resolved circumstellar emission source.
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Design, manufacturing, and performance analysis of mid-infrared achromatic half-wave plates with diamond subwavelength gratings
Christian Delacroix,Pontus Forsberg,Mikael Karlsson,Dimitri Mawet,Olivier Absil,Charles Hanot,Jean Surdej,Serge Habraken +7 more
TL;DR: This analysis shows that diamond, besides its outstanding physical and mechanical properties, is a suitable substrate to manufacture mid-infrared HWPs, thanks to its high refractive index, which allows etching SWGs with lower aspect ratio.
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L'-band AGPM vector vortex coronagraph's first light on VLT/NACO: Discovery of a late-type companion at two beamwidths from an F0V star
Dimitri Mawet,Olivier Absil,Christian Delacroix,Julien Girard,Julien Milli,Jared O'Neal,Pierre Baudoz,A. Boccaletti,Pierre Bourget,Valentin Christiaens,Pontus Forsberg,Frédéric Gonté,Serge Habraken,Charles Hanot,Mikael Karlsson,M. Kasper,J.-L. Lizon,K. Muzic,R. Olivier,E. Pena,N. Slusarenko,L. E. Tacconi-Garman,Jean Surdej +22 more
TL;DR: An annular groove phase mask (AGPM) vector vortex coronagraph optimized for the L′ band made from diamond subwavelength gratings was manufactured and qualified in the lab.
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Nulling interferometry: impact of exozodiacal clouds on the performance of future life-finding space missions
TL;DR: In this article, the impact of exozodiacal clouds on the performance of an infrared nulling interferometer in the Emma X-array configuration was evaluated using the DarwinSIM software.
Journal ArticleDOI
Improving interferometric null depth measurements using statistical distributions: theory and first results with the palomar fiber nuller
Charles Hanot,Bertrand Mennesson,Stefan Martin,Kurt Liewer,Frank Loya,Dimitri Mawet,Pierre Riaud,Olivier Absil,Eugene Serabyn +8 more
TL;DR: In this article, a self-calibrated statistical analysis method was developed for the reduction of nulling interferometry data, which uses the statistical distributions of the fluctuating null depth and beam intensities to retrieve the astrophysical null depth in the presence of fast atmospheric fluctuations.