Multi-conjugate adaptive optics on the E-ELT
E. Diolaiti, J.-M. Conan, I. Foppiani et al.
(INAF - Osservatorio Astronomico di Bologna)
MAORY is the multi-conjugate adaptive optics module for the European Extremely Large Telescope. It is designed to compensate the atmospheric turbulence over a 2 arcmin field of view in the wavelength range 0.8-2.4 micron. Performance and sky coverage are achieved by means of three deformable mirrors, driven by a wavefront sensing system based on laser and natural guide stars. High accuracy photometry and astrometry and infrared spectroscopy are the key science applications of the MAORY module with its client instruments. The module design and its expected performance will be presented.
YAW : premières conclusions sur un nouvel analyseur de surface d'onde
Brangier M, Gendron E, Buey JT, Chenegros G, Sevin A, Pouplard F, Hubert Z, Vidal F, Rousset G
We present the lasts results for YAW, a new concept for an optical differentiation wavefront sensor, recently tested on SESAME bench. Particularly, we discuss the performances of this sensor for laser tomography on ELT's
Challenges for adaptive optics in SPHERE high contrast imaging
D. Mouillet et al
SPHERE is a second generation instrument for the VLT, dedicated to high contrast imaging. I will emphasize the corresponding challenges for adaptive optics in such an instrument, the specific technological and system developments made, and some critical fields of research for the future.