Results 131 to 140 of about 43,714 (202)

Nonlinear techniques for few-mode wavefront sensors [PDF]

arXiv
We present several nonlinear wavefront sensing techniques for few-mode sensors, all of which are empirically calibrated and agnostic to the choice of wavefront sensor. The first class of techniques involves a straightforward extension of the linear phase retrieval scheme to higher order; the resulting Taylor polynomial can then be solved using the ...
arxiv  

Accounting for focal shift in the Shack-Hartmann wavefront sensor. [PDF]

Opt Lett, 2019
Akondi V, Dubra A.
europepmc   +1 more source

Determining the Phase and Amplitude Distortion of a Wavefront using a Plenoptic Sensor

, 2015
We have designed a plenoptic sensor to retrieve phase and amplitude changes resulting from a laser beam's propagation through atmospheric turbulence. Compared with the commonly restricted domain of (-pi, pi) in phase reconstruction by interferometers ...
Davis, Christopher C., Ko, Jonathan, Wu, Chensheng   +2 more
core  

Revisiting the comparison between the Shack-Hartmann and the pyramid wavefront sensors via the Fisher information matrix

, 2015
Cédric Plantet, Serge Meimon, J.‐M. Conan, Thierry Fusco   +3 more
openalex   +1 more source

A Shack-Hartmann wavefront sensor projected on to the sky with reduced focal anisoplanatism [PDF]

, 2006
T. Butterley, Gordon D. Love, Richard Wilson, Richard M. Myers, Tim Morris   +4 more
openalex   +1 more source

Centroid error due to non-uniform lenslet illumination in the Shack-Hartmann wavefront sensor. [PDF]

Opt Lett, 2019
Akondi V, Steven S, Dubra A.
europepmc   +1 more source

Performance comparison of the Shack-Hartmann and pyramid wavefront sensors with a laser guide star for 40 m telescopes [PDF]

Francisco Oyarzún, Cédric Taïssir Heritier, Vincent Chambouleyron, Thierry Fusco, Paul Rouquette, Benoît Neichel   +5 more
openalex   +2 more sources

Two-photon Shack-Hartmann wavefront sensor. [PDF]

Opt Lett, 2017
Xia F, Sinefeld D, Li B, Xu C.
europepmc   +1 more source

Fast single pixel modal wavefront sensing using neural networks [PDF]

arXiv
Dynamic wavefront aberrations negatively impact a wide range of optical applications including astronomy, optical free-space telecommunications and bio-imaging. Wavefront errors can be compensated by an adaptive optics system comprised of a deformable mirror and wavefront sensor connected by a control loop. For satellite optical communications (SatCom),
arxiv  

Pupil tracking with a Hartmann-Shack wavefront sensor [PDF]

, 2010
Justo Arines, Paula Prado, Salvador Bará   +2 more
openalex   +1 more source