17 citations · 20 across the 4 of their papers we have counts for
6 papers
SAXO+, the second-stage adaptive optics for SPHERE: NCPA compensation and dark-hole loop with a pyramid wavefront sensor
Johan Mazoyer, Charles Goulas, Raphaël Galicher +21
The SAXO+ upgrade of the VLT/SPHERE adaptive optics system introduces a second-stage near-infrared pyramid wavefront sensor to improve high-contrast imaging, making accurate calibr…
Non-common path aberration compensation and a dark hole loop with a pyramid adaptive optics system: Application to SAXO+
C. Goulas, R. Galicher, F. Vidal +16
In ground-based high-contrast instruments, non-common path aberrations (NCPAs) limit detection performance, as they are unseen by the adaptive optics (AO) wavefront sensor but impa…
Upgrading SPHERE with the second stage AO system SAXO+: frequency-based data-driven controller for adaptive optics
Isaac Dinis, François Wildi, Damien Ségransan +22
This study introduces a novel frequency-based data-driven controller for adaptive optics, using power spectral density for optimization while ensuring stability criteria. It addres…
Numerical simulations for the SAXO+ upgrade: Performance analysis of the adaptive optics system
Charles Goulas, Raphaël Galicher, Fabrice Vidal +16
SPHERE, operating at the VLT since 2014, is currently one of the high-contrast instruments with a higher performance. Its adaptive optics system, known as SAXO, will be upgraded to…
SAXO+ upgrade : second stage AO system end-to-end numerical simulations
Charles Goulas, Fabrice Vidal, Raphaël Galicher +14
SAXO+ is a proposed upgrade to SAXO, the AO system of the SPHERE instrument on the ESO Very Large Telescope. It will improve the capabilities of the instrument for the detection an…
Probing the nuclear star cluster of galaxies with ELTs
M. Gullieuszik, L. Greggio, R. Falomo +2
The unprecedented sensitivity and spatial resolution of next generation ground-based extremely large telescopes (ELTs) will open a completely new window on the study of resolved st…