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Proceedings Paper

Optical design options for hypertelescopes and prototype testing
Author(s): Erick Bondoux; Sandra Bosio; Rijuparna Chakraborty; Wassila Dali-Ali; Antoine Labeyrie; Bruno Lacamp; Jerome Maillot; Denis Mourard; Paul D. Nunez; Jordi Pijoan; Rémi Prudhomme; Pierre Riaud; Martine Roussel; Arun Surya; Bernard Tregon; Thomas Houllier; Thierry Lepine; Patrick Rabou; André Rondi; Yves Bresson; David Vernet
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Paper Abstract

Hypertelescopes are large optical interferometric arrays, employing many small mirrors and a miniature pupildensifier before the focal camera, expected to produce direct images of celestial sources at high resolution. Their peculiar imaging properties, initially explored through analytical derivations, had been verified with simulations before testing a full-size testbed instrument. We describe several architectures and optical design solutions and present recent progress made on the Ubaye hypertelescope experiment. Arecibo-like versions with a fixed spherical primary meta-mirror, or an active aspheric one, have a suspended focal beam combiner equipped for pupil-drift accommodation, with a field-mosaic arrangement for observing multiple sources such as exoplanetary systems, globular clusters or active galactic nuclei. We have developed a cable suspension and drive system with tracking accuracy reaching a millimeter at 100m above ground.

Paper Details

Date Published: 7 September 2016
PDF: 14 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99071J (7 September 2016); doi: 10.1117/12.2234434
Show Author Affiliations
Erick Bondoux, Observatoire de la Côte d’Azur, CNRS (France)
Sandra Bosio, Lab. Ondes et Matière d'Aquitaine, CNRS (France)
Rijuparna Chakraborty, Observatoire de Grenoble, CNRS (France)
Wassila Dali-Ali, Observatoire de Grenoble, CNRS (France)
Antoine Labeyrie, Collège de France, CNRS (France)
Bruno Lacamp, Collège de France, CNRS (France)
Jerome Maillot, Collège de France, CNRS (France)
Denis Mourard, Collège de France, CNRS (France)
Paul D. Nunez, Collège de France, CNRS (France)
Jordi Pijoan, Collège de France, CNRS (France)
Rémi Prudhomme, Collège de France, CNRS (France)
Pierre Riaud, Collège de France, CNRS (France)
Martine Roussel, Collège de France, CNRS (France)
Arun Surya, Collège de France, CNRS (France)
Bernard Tregon, Lab. Ondes et Matière d'Aquitaine, CNRS (France)
Thomas Houllier, Institut d'Optique Graduate School, CNRS (France)
Thierry Lepine, Institut d'Optique Graduate School, CNRS (France)
Patrick Rabou, Observatoire de Grenoble, CNRS (France)
André Rondi, Observatoire de Grenoble, CNRS (France)
Yves Bresson, Observatoire de la Côte d'Azur, CNRS (France)
David Vernet, Observatoire de la Côte d'Azur, CNRS (France)

Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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