Deformable mirrors for the FALCON concept

M. Puech; F. Chemla; P. Laporte; P. Jagourel; E. Gendron; F. Hammer; F. Assemat; J.-M. Conan; T. Fusco; A. Liotard; F. Zamkotsian

doi:10.1117/12.613172

6 October 2005 Deformable mirrors for the FALCON concept

M. Puech, F. Chemla, P. Laporte, P. Jagourel, E. Gendron, F. Hammer, F. Assemat, J.-M. Conan, T. Fusco, A. Liotard, F. Zamkotsian

Author Affiliations +

Proceedings Volume 5903, Astronomical Adaptive Optics Systems and Applications II; 59030V (2005) https://doi.org/10.1117/12.613172
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

FALCON is an original concept for a next generation instrument which could be used on the ESO Very Large Telescope (VLT) and on the future Extremely Large Telescopes (ELT). It is a multi-objects integral field spectrograph with multiple small integral field units (IFUs). Each of them integrates a tiny adaptive optics system coupled with atmospheric tomography to solve the sky coverage problem. This therefore allows to reach spatial (0.15 - 0.25 arcsec) and spectral (R>=5000) resolutions suitable for distant galaxy studies in the 0.8-1.8 μm wavelength range. In the FALCON concept, the adaptive optics correction is only applied on small and discrete areas selected within a large field. This approach implies to develop miniaturized devices for wavefront correction such as deformable mirrors (DM) and wavefront sensors (WFS). We draw up here the main high level specifications for this instrument, that we derive in a first set of opto-mechanical DM requirements including the state of the art of DM technologies.

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M. Puech, F. Chemla, P. Laporte, P. Jagourel, E. Gendron, F. Hammer, F. Assemat, J.-M. Conan, T. Fusco, A. Liotard, and F. Zamkotsian "Deformable mirrors for the FALCON concept", Proc. SPIE 5903, Astronomical Adaptive Optics Systems and Applications II, 59030V (6 October 2005); https://doi.org/10.1117/12.613172

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