Implicit electric field conjugation: Data-driven focal plane control
Context. Direct imaging of Earth-like planets is one of the main science cases for the next
generation of extremely large telescopes. This is very challenging due to the star-planet …
generation of extremely large telescopes. This is very challenging due to the star-planet …
Apodized phase mask coronagraphs for arbitrary apertures-ii. comprehensive review of solutions for the vortex coronagraph
Context. With a clear circular aperture, the vortex coronagraph perfectly cancels an on-axis
point source and offers a 0.9 or 1.75λ/D inner working angle for topological charge 2 or 4 …
point source and offers a 0.9 or 1.75λ/D inner working angle for topological charge 2 or 4 …
Review of small-angle coronagraphic techniques in the wake of ground-based second-generation adaptive optics systems
Small-angle coronagraphy is technically and scientifically appealing because it enables the
use of smaller telescopes, allows covering wider wavelength ranges, and potentially …
use of smaller telescopes, allows covering wider wavelength ranges, and potentially …
Fast linearized coronagraph optimizer (FALCO) I: a software toolbox for rapid coronagraphic design and wavefront correction
The Fast Linearized Coronagraph Optimizer (FALCO) is an open-source toolbox of routines
for coronagraphic focal plane wavefront correction. The goal of FALCO is to provide a free …
for coronagraphic focal plane wavefront correction. The goal of FALCO is to provide a free …
Imaging exoplanets with coronagraphic instruments
R Galicher, J Mazoyer - Comptes …, 2023 - comptes-rendus.academie-sciences …
L'exoplanétologie est un domaine très actif de l'astronomie moderne avec des questions
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
Methods and limitations of focal plane sensing, estimation, and control in high-contrast imaging
TD Groff, AJ Eldorado Riggs, B Kern… - Journal of …, 2016 - spiedigitallibrary.org
Coronagraphy is a very promising method for directly imaging exoplanets, but the
performance of a coronagraph is highly sensitive to quasi-static aberrations within the …
performance of a coronagraph is highly sensitive to quasi-static aberrations within the …
Apodized pupil Lyot coronagraphs for arbitrary apertures. V. Hybrid shaped pupil designs for imaging Earth-like planets with future space observatories
We introduce a new class of solutions for Apodized Pupil Lyot Coronagraphs (APLC) with
segmented aperture telescopes to remove broadband diffracted light from a star with a …
segmented aperture telescopes to remove broadband diffracted light from a star with a …
Shaped pupil Lyot coronagraphs: high-contrast solutions for restricted focal planes
NT Zimmerman, AJ Eldorado Riggs… - Journal of …, 2016 - spiedigitallibrary.org
Coronagraphs of the apodized pupil and shaped pupil varieties use the Fraunhofer
diffraction properties of amplitude masks to create regions of high contrast in the vicinity of a …
diffraction properties of amplitude masks to create regions of high contrast in the vicinity of a …
Increasing the raw contrast of VLT/SPHERE with the dark hole technique-II. On-sky wavefront correction and coherent differential imaging
Context. Direct imaging of exoplanets takes advantage of state-of-the-art adaptive optics
(AO) systems, coronagraphy, and postprocessing techniques. Coronagraphs attenuate …
(AO) systems, coronagraphy, and postprocessing techniques. Coronagraphs attenuate …
High-contrast imaging with an arbitrary aperture: active compensation of aperture discontinuities
We present a new method to achieve high-contrast images using segmented and/or on-axis
telescopes. Our approach relies on using two sequential deformable mirrors (DMs) to …
telescopes. Our approach relies on using two sequential deformable mirrors (DMs) to …