7 September 2016 Optical design options for hypertelescopes and prototype testing
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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.
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Erick Bondoux, Erick Bondoux, Sandra Bosio, Sandra Bosio, Rijuparna Chakraborty, Rijuparna Chakraborty, Wassila Dali-Ali, Wassila Dali-Ali, Antoine Labeyrie, Antoine Labeyrie, Bruno Lacamp, Bruno Lacamp, Jerome Maillot, Jerome Maillot, Denis Mourard, Denis Mourard, Paul D. Nunez, Paul D. Nunez, Jordi Pijoan, Jordi Pijoan, Rémi Prudhomme, Rémi Prudhomme, Pierre Riaud, Pierre Riaud, Martine Roussel, Martine Roussel, Arun Surya, Arun Surya, Bernard Tregon, Bernard Tregon, Thomas Houllier, Thomas Houllier, Thierry Lepine, Thierry Lepine, Patrick Rabou, Patrick Rabou, André Rondi, André Rondi, Yves Bresson, Yves Bresson, David Vernet, David Vernet, } "Optical design options for hypertelescopes and prototype testing", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99071J (7 September 2016); doi: 10.1117/12.2234434; https://doi.org/10.1117/12.2234434
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