Optical design options for hypertelescopes and prototype testing

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

doi:10.1117/12.2234434

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7 September 2016 Optical design options for hypertelescopes and prototype testing

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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Proceedings Volume 9907, Optical and Infrared Interferometry and Imaging V; 99071J (2016) https://doi.org/10.1117/12.2234434
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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, 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, and David Vernet "Optical design options for hypertelescopes and prototype testing", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99071J (7 September 2016); https://doi.org/10.1117/12.2234434

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