41 citations · 54 across the 7 of their papers we have counts for
7 papers
Self-calibration of adaptive optics systems. Application to the THEMIS solar telescope
Clementine Bechet, Eric Thiebaut, Michel Tallon +3
The interaction matrix models the effects of deformable mirror (DM) commands as perceived by the wavefront sensor (WFS) and is the cornerstone of the Adaptive Optics (AO) control.…
THÉMIS: a calibration-free solar telescope
V. Bommier, B. Gelly, R. Douet
Context. THÉMIS was initially built as a calibration-free telescope, with the polarisation analysis performed in F1 focus, before any oblique reflection. Recently, the telescope wa…
Closing the loop as an inverse problem: the real-time control of THEMIS adaptive optics
Éric Thiébaut, Michel Tallon, Isabelle Tallon-Bosc +4
We have taken advantage of the implementation of an adaptive optics system on the Themis solar telescope to implement innovative strategies based on an inverse problem formulation…
The wavefront sensing making-of for THEMIS solar telescope
Michel Tallon, Éric Thiébaut, Maud Langlois +5
An adaptive optics system with a single deformable mirror is being implemented on the THEMIS 90cm solar telescope. This system is designed to operate in the visible and is required…
Evolution of exploding granules from coordinated observations by THEMIS, IRIS, SDO/HMI, and HINODE, and a simulation
T. Roudier, J. M. Malherbe, B. Gelly +3
Exploding granules constitute the strongest horizontal flows on the quiet Sun and contribute to the structure of the surface horizontal velocity fields which build the large-scale…
Apodized Lyot Coronagraph for VLT-SPHERE: Laboratory tests and performances of a first prototype in the visible
Géraldine Guerri, Sylvie Robbe-Dubois, Jean-Baptiste Daban +9
We present some of the High Dynamic Range Imaging activities developed around the coronagraphic test-bench of the Laboratoire A. H. Fizeau (Nice). They concern research and develop…