Results 281 to 290 of about 2,024,523 (345)

Uncertainty should be the rule, not the exception: Integrating fibre orientation variability in cardiac electrophysiology modelling

The Journal of Physiology, EarlyView.
Ovais Ahmed Jaffery, Caroline Helen Roney   +1 more
wiley   +1 more source

Objective Depth-of-Focus Estimation from Wavefront Measurements After Implantation of an Isofocal Intraocular Lens. [PDF]

Clin Ophthalmol
Hosny M, Azzam S, Howaidy AI, Hosny R, Anis M.   +4 more
europepmc   +1 more source

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Lab tests of segment/petal phasing with a pyramid wavefront sensor and a holographic dispersed fringe sensor in turbulence with the Giant Magellan Telescope high contrast adaptive optics phasing testbed

Journal of Astronomical Telescopes Instruments and Systems, 2022
. The Giant Magellan Telescope (GMT) design consists of seven circular 8.4-m diameter mirrors, together forming a single 25.4-m diameter primary mirror. This large aperture and collecting area can help extreme adaptive optics (ExAO) systems such as GMT’s
A. Hedglen, L. Close, S. Haffert, J. Males, M. Kautz, A. Bouchez, R. Demers, F. Quirós-Pacheco, B. Sitarski, O. Guyon, Kyle Van Gorkom, J. Long, J. Lumbres, L. Schatz, K. Miller, A. Rodack, J. Knight   +16 more
semanticscholar   +1 more source

High-precision wavefront reconstruction from Shack-Hartmann wavefront sensor data by a deep convolutional neural network

Measurement science and technology, 2021
The Shack–Hartmann wavefront sensor (SHWFS) has been widely used for measuring aberrations in adaptive optics systems. However, its traditional wavefront reconstruction method usually has limited precision under field conditions because the weight-of ...
Hu Gu, Ziyun Zhao, Zhi-gao Zhang, Shuo Cao, Jing-jing Wu, Lifa Hu   +5 more
semanticscholar   +1 more source

Holographic wavefront sensors

Quantum Electronics, 2020
Abstract A brief historical review of the first designs of holographic wavefront sensors (WFS’s) and the concepts lying in their basis is presented. The main directions in the development of these sensors are highlighted and considered.
V. Yu. Venediktov, Egor V. Shalymov, Alina V. Gorelaya, G. K. Krasin, Alexander Sevryugin, Sergey B. Odinokov   +5 more
openaire   +2 more sources

Fourier wavefront reconstruction with a pyramid wavefront sensor

Adaptive Optics Systems VI, 2018
Using Fourier methods to reconstruct the phase measured by a wavefront sensor (WFS) can significantly re- duce the number of computations required, as well as easily enable predictive reconstruction methods based on knowledge of the adaptive optics system, atmospheric turbulence and wind profile. Previous work on Fourier re- construction has focused on
Bond, Charlotte, Correia, Carlos, Sauvage, Jean-François, El Hadi, Kacem, Neichel, Benoit, Fusco, Thierry   +5 more
openaire   +3 more sources

Radial shearing dynamic wavefront sensor based on a geometric phase lens pair.

Optics Letters, 2021
A radial shearing dynamic wavefront sensor is theorized and experimentally verified. The proposed sensor is based on a geometric phase lens pair that generates two radially sheared wavefronts.
H. Park, Daewook Kim, C. Guthery, K. Joo
semanticscholar   +1 more source

CIAO: wavefront sensors for GRAVITY

SPIE Proceedings, 2016
GRAVITY is a second generation near-infrared VLTI instrument that will combine the light of the four unit or four auxiliary telescopes of the ESO Paranal observatory in Chile. The major science goals are the observation of objects in close orbit around, or spiraling into the black hole in the Galactic center with unrivaled sensitivity and angular ...
Scheithauer, Silvia, Brandner, Wolfgang, Deen, Casey P., Adler, Tobias, Bonnet, Henri, Bourget, P., Chemla, Fanny, Clénet, Yann, Delplancke, Francoise, Ebert, Monica, Eisenhauer, Frank, Esselborn, Michael, Finger, Gert, Gendron, Éric, Glauser, Adrian M., Gonté, Frédéric, Henning, Thomas, Hippler, Stefan, Huber, Armin, Hubert, Zoltan, Jakob, Gerd, Jochum, Lieselotte, Jocou, Laurent, Kendrew, Sarah, Klein, Ralf, Kolb, Johann, Kulas, Martin, Laun, Werner, Lenzen, Rainer, Mellein, Marcus, Müller, Eric, Moreno-Ventas, Javier, Neumann, Udo, Oberti, Sylvain, Ott, Jürgen, Pallanca, Laurent, Panduro, Johana, Ramos, José Ricardo, Riquelme, Miguel, Rohloff, Ralf-Rainer, Rousset, Gérard, Schuhler, Nicolas, Suarez, Marcos, Zins, Gerard   +43 more
openaire   +3 more sources