417 citations · 668 across the 8 of their papers we have counts for
10 papers
AO3k at Subaru: First on-sky results of the facility extreme-AO
Julien Lozi, Kyohoon Ahn, Hannah Blue +12
The facility adaptive optics of the Subaru Telescope AO188 recently received some long-awaited upgrades: a new 3224-actuator deformable mirror (DM) from ALPAO (hence the name chang…
AO3000 at Subaru: Combining for the first time a NIR WFS using First Light's C-RED ONE and ALPAO's 64x64 DM
Julien Lozi, Kyohoon Ahn, Christophe Clergeon +7
After 16 years of on-sky operation, Subaru Telescope's facility adaptive optics AO188 is getting several major upgrades to become the extreme-AO AO3000 (3000 actuators in the pupil…
SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies
Julien Lozi, Olivier Guyon, Nemanja Jovanovic +31
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is an extremely modular high-contrast instrument installed on the Subaru telescope in Hawaii. SCExAO has a dual…
The Subaru Coronagraphic Extreme Adaptive Optics system: enabling high-contrast imaging on solar-system scales
N. Jovanovic, F. Martinache, O. Guyon +35
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of ex…
On-sky speckle nulling demonstration at small angular separation with SCExAO
Frantz Martinache, Olivier Guyon, Nemanja Jovanovic +7
This paper presents the first on-sky demonstration of speckle nulling, which was achieved at the Subaru Telescope in the context of the Subaru Coronagraphic Extreme Adaptive Optics…
Lyot-based Low Order Wavefront Sensor for Phase-mask Coronagraphs: Principle, Simulations and Laboratory Experiments
Garima Singh, Frantz Martinache, Pierre Baudoz +4
High performance coronagraphic imaging of faint structures around bright stars at small angular separations requires fine control of tip, tilt and other low order aberrations. When…
Lyot-based Ultra-Fine Pointing Control System for Phase Mask Coronagraphs
Garima Singh, Frantz Martinache, Pierre Baudoz +3
High performance coronagraphic imaging at small inner working angle requires efficient control of low order aberrations. The absence of accurate pointing control at small separatio…
SCExAO as a precursor to an ELT exoplanet direct imaging instrument
Nemanja Jovanovic, Olivier Guyon, Frantz martinache +11
The Subaru Coronagraphic Extreme AO (SCExAO) instrument consists of a high performance Phase Induced Amplitude Apodisation (PIAA) coronagraph combined with an extreme Adaptive Opti…
The Subaru Coronagraphic Extreme Adaptive Optics Imager: First Results and On-Sky Performance
Thayne Currie, Olivier Guyon, Frantz Martinache +6
We present new on-sky results for the Subaru Coronagraphic Extreme Adaptive Optics imager (SCExAO) verifying and quantifying the contrast gain enabled by key components: the closed…
Speckle Control with a remapped-pupil PIAA-coronagraph
Frantz Martinache, Olivier Guyon, Christophe Clergeon +1
The PIAA is a now well demonstrated high contrast technique that uses an intermediate remapping of the pupil for high contrast coronagraphy (apodization), before restoring it to re…