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Proceedings Paper

Recent results and future DMs for astronomy and for space applications at CILAS
Author(s): Jean-Christophe Sinquin; Arnaud Bastard; Emmanuel Beaufort; Thomas Berkefeld; Laurent Cadiergues; Vincent Costes; Raphaël Cousty; Charles Dekhtiar; Frédéric Di Gesu; Xavier Gilbert; Catherine Grèzes-Besset; Denis Groeninck; Markus Hartung; Hélène Krol; Aurélien Moreau; Pierre Morin; Hubert Pagès; Richard Palomo; Göran Scharmer; Dirk Soltau; Jean-Pierre Véran
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Paper Abstract

We present recent experimental results obtained with CILAS deformable mirrors (DMs) or demonstration prototypes in solar and night-time astronomy (with ground-based telescopes) as well as observation of the Earth (with space telescopes). These important results have been reached thanks to CILAS technology range composed of monomorph and piezostack deformable mirrors, drivers and optical coatings. For instance, the monomorph technology, due to a simple architecture can offer a very good reliability for space applications. It can be used for closed or open loop correction of the primary mirror deformation (thermal and polishing aberrations, absence of gravity). It can also allow a real-time correction of wavefront aberrations introduced by the atmosphere up to relatively high spatial and temporal frequencies for ground-based telescopes. The piezostack technology is useful for very high order correction at high frequency and under relatively low operational temperature (down to -30°C), which is required for future Extremely Large Telescopes (ELTs). This wide range of applications is exposed through recent examples of DMs performances in operation and results obtained with breadboards, allowing promising DMs for future needs.

Paper Details

Date Published: 21 July 2014
PDF: 15 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91480G (21 July 2014); doi: 10.1117/12.2056287
Show Author Affiliations
Jean-Christophe Sinquin, CILAS (France)
Arnaud Bastard, CILAS (France)
Emmanuel Beaufort, CILAS (France)
Thomas Berkefeld, Kiepenheuer-Institut für Sonnenphysik (Germany)
Laurent Cadiergues, Ctr. National d’Etudes Spatiales (France)
Vincent Costes, Cr. National d’Etudes Spatiales (France)
Raphaël Cousty, CILAS (France)
Charles Dekhtiar, Airbus Defence and Space (France)
Frédéric Di Gesu, Airbus Defence and Space (France)
Xavier Gilbert, CILAS (France)
Catherine Grèzes-Besset, CILAS (France)
Denis Groeninck, CILAS (France)
Markus Hartung, Gemini Observatory (Chile)
Hélène Krol, CILAS (France)
Aurélien Moreau, CILAS (France)
Pierre Morin, CILAS (France)
Hubert Pagès, CILAS (France)
Richard Palomo, CILAS (France)
Göran Scharmer, Stockholm Univ. (Sweden)
Dirk Soltau, Kiepenheuer-Institut für Sonnenphysik (Germany)
Jean-Pierre Véran, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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