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On-Line Long-Exposure Phase Diversity: a Powerful Tool for Sensing Quasi-Static Aberrations of Extreme Adaptive Optics Imaging Systems
L. M. Mugnier, J. -F. Sauvage, T. Fusco +2
The phase diversity technique is a useful tool to measure and pre-compensate for quasi-static aberrations, in particular non-common path aberrations, in an adaptive optics correcte…
Calibration and Pre-Compensation of Non-Common Path Aberrations for extreme Adaptive Optics
J. -F. Sauvage, T. Fusco, G. Rousset +1
Non-Common Path Aberrations (NCPA) are one of the main limitations for extreme Adaptive Optics (AO) system. NCPA prevent extreme AO systems to achieve their ultimate performance. T…
Post processing of differential images for direct extrasolar planet detection from the ground
J. -F. Sauvage, L. Mugnier, T. Fusco +1
The direct imaging from the ground of extrasolar planets has become today a major astronomical and biological focus. This kind of imaging requires simultaneously the use of a dedic…