scholarly journals Extremely fast focal-plane wavefront sensing for extreme adaptive optics

2012 ◽  
Author(s):  
Christoph U. Keller ◽  
Visa Korkiakoski ◽  
Niek Doelman ◽  
Rufus Fraanje ◽  
Raluca Andrei ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Focal Plane ◽  
Wavefront Sensing ◽  
Plane Wavefront

scholarly journals Focal-plane wavefront sensing with high-order adaptive optics systems

2014 ◽  
Author(s):  
Visa Korkiakoski ◽  
Christoph U. Keller ◽  
Niek Doelman ◽  
Matthew Kenworthy ◽  
Gilles Otten ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Focal Plane ◽  
High Order ◽  
Wavefront Sensing ◽  
Plane Wavefront

Fast focal plane wavefront sensing as a second stage adaptive optics wavefront sensor

2020 ◽  
Author(s):  
Benjamin L. Gerard ◽  
Jean-Pierre Véran ◽  
Garima Singh ◽  
Glen Herriot ◽  
Olivier Lardière ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Focal Plane ◽  
Wavefront Sensor ◽  
Wavefront Sensing ◽  
Second Stage ◽  
Plane Wavefront

scholarly journals Focal Plane Wavefront Sensing with the FAST TGV Coronagraph

2020 ◽  
Vol 132 (1012) ◽  
pp. 064401
Author(s):  
Benjamin L. Gerard ◽  
Christian Marois
Keyword(s):  
Focal Plane ◽  
Wavefront Sensing ◽  
Plane Wavefront

On-sky results of focal-plane wavefront sensing and control with the asymmetric pupil vector-apodizing phase plate coronagraph

2020 ◽  
Author(s):  
Steven P. Bos ◽  
Kelsey L. Miller ◽  
Julien Lozi ◽  
Olivier Guyon ◽  
Vikram Mark Radhakrishnan ◽  
...  
Keyword(s):  
Focal Plane ◽  
Phase Plate ◽  
Wavefront Sensing ◽  
Plane Wavefront ◽  
And Control

scholarly journals Fast focal plane wavefront sensing on ground-based telescopes

2018 ◽  
Author(s):  
Benjamin L. Gerard ◽  
Christian Marois ◽  
Jean-Pierre Véran ◽  
Raphaël Galicher
Keyword(s):  
Focal Plane ◽  
Wavefront Sensing ◽  
Plane Wavefront

scholarly journals SCExAO: First Results and On-Sky Performance

2013 ◽  
Vol 8 (S299) ◽  
pp. 34-35 ◽  
Author(s):  
Thayne Currie ◽  
Olivier Guyon ◽  
Frantz Martinache ◽  
Christophe Clergeon ◽  
Michael McElwain ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Focal Plane ◽  
Closed Loop ◽  
Giant Planets ◽  
Wavefront Sensor ◽  
Strehl Ratio ◽  
Wavefront Control ◽  
Contrast Gain ◽  
First Results ◽  
Plane Wavefront

AbstractWe 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-loop coronagraphic low-order wavefront sensor (CLOWFS) and focal plane wavefront control (“speckle nulling”). SCExAO will soon be coupled with a high-order, Pyramid wavefront sensor which will yield > 90% Strehl ratio and enable 106–107 contrast at small angular separations allowing us to image gas giant planets at solar system scales. Upcoming instruments like VAMPIRES, FIRST, and CHARIS will expand SCExAO's science capabilities.

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