Dr. Moretto is a CNRS scientist with 20 years of research activities around the conception of dedicated high resolution and high dynamic range instrumentation for ground- and spaced-based astronomy. In USA – NSF/NOAO&NSO – he has proposed, designed and built: the SOAR Telescope and some of its instruments; the first-in-sky MCAO system at NSO Dunn Solar Telescope. He has proposed and designed the preliminary optical design for the ATST/NSF 4m off-axis solar telescope, its MCAO relay system and also its Fabry-Perot interferometer. He has designed the novel instrument exciting concept – the High Dynamic Range Telescope, a diluted 6x6.5m off-axis mirror design (Kuhn, Moretto, Racine and Roddier, PASP, 2001) – a concept proposed as replacement for the CFHT and also become the concept for the 25m Giant Magellan Telescope and The Colossus Telescope. In France – CNRS – he served as the project manager for the proposals: JWST/NIRSpec/IFU to ESA/Astrium; the “Wide Field Spectrograph – A Multi Object Adaptive Optics Instrument” for ESO/EELT. He also served as a lab CNRS’ Technical Director for one term. Nowadays he has pursuing the to design and to develop The Colossus Telescope and novel infrared survey off-axis telescope concept for Antarctica astronomy.
Partially filled aperture interferometric telescopes: achieving large aperture and coronagraphic performance
New strategies for an extremely large telescope dedicated to extremely high contrast: the Colossus project
Reviewing off-axis telescope concepts: a quest for highest possible dynamic range for photometry and angular resolution
Three-dimensional high-order wavefront sensing, anisoplanatism, and evaluation of the feasibility of solar MCAO