Results 141 to 150 of about 93,717 (313)

Development of a scalable generic platform for adaptive optics real time control

, 2015
The main objective of the present project is to explore the viability of an adaptive optics control system based exclusively on Field Programmable Gate Arrays (FPGAs), making strong use of their parallel processing capability.
Burse, Mahesh P., Parihar, Padmakar, Ramaprakash, A. N., Surendran, Avinash   +3 more
core   +1 more source

In-situ testing of high resolution optical systems via localized wavefront curvature sensing [PDF]

, 2012
Ryan Miyakawa, Christopher N. Anderson, Patrick Naulleau   +2 more
openalex   +3 more sources

Construction and use of an adaptive optics two-photon microscope with direct wavefront sensing. [PDF]

Nat Protoc, 2023
Yao P, Liu R, Broggini T, Thunemann M, Kleinfeld D.   +4 more
europepmc   +1 more source

Wavefront sensing in the human eye

, 2002
Fortschritte in der chirurgischen Technik zur Korrektur von refraktionsbedingten Sehfehlern haben es ermoglicht, dass heute die Form der Hornhautvorderflache auch ortsaufgelost geandert werden kann. Die Refraktionsmessungen am menschlichen Auge beschrankten sich allerdings auf die Messung von Sphare und Astigmatismus, und zwar bei einer einzigen ...
openaire   +2 more sources

Wavefront sensing with a gradient phase filter

Optics Communications
20 pages, 8 ...
François Hénault, Yan Feng, Jean-Jacques Correia, Laura Schreiber, Alain Spang   +4 more
openaire   +3 more sources

Wavefront sensing using a multi-object spectrograph (NIRSpec) [PDF]

, 2004
Bruce H. Dean, Rene A. Boucarut, Jeffrey S. Smith, Theo Hadjimichael   +3 more
openalex   +1 more source

Numerical control matrix rotation for the LINC-NIRVANA Multi-Conjugate Adaptive Optics system

, 2010
LINC-NIRVANA will realize the interferometric imaging focal station of the Large Binocular Telescope. A double Layer Oriented multi-conjugate adaptive optics system assists the two arms of the interferometer, supplying high order wave-front correction ...
Arcidiacono, Carmelo, Bertram, Thomas, Briguglio, Runa, Busoni, Lorenzo, Esposito, Simone, Farinato, Jacopo, Fini, Luca, Pinna, Enrico, Puglisi, Alfio, Quiros-Pacheco, Fernando, Ragazzoni, Roberto, Riccardi, Armando, Xompero, Marco   +12 more
core   +1 more source

SDF‐Guided Point Cloud Generation Framework for Mesh‐Free CFD

International Journal for Numerical Methods in Fluids, EarlyView.
This paper presents different methods for generating clouds of points around objects for use with meshless methods in computational fluid dynamics. This image shows the cloud generated around the original ROBIN body. ABSTRACT Meshing is a bottleneck of CFD workflows, especially when complex geometries are considered.
Tao Zhang, George N. Barakos
wiley   +1 more source

Cross-Correlation Algorithm Based on Speeded-Up Robust Features Parallel Acceleration for Shack–Hartmann Wavefront Sensing

Photonics
A cross-correlation algorithm to obtain the sub-aperture shifts that occur is a crucial aspect of scene-based SHWS (Shack–Hartmann wavefront sensing).
Linxiong Wen, Xiaohan Mei, Yi Tan, Zhiyun Zhang, Fangfang Chai, Jiayao Wu, Shuai Wang, Ping Yang   +7 more
doaj   +1 more source

Hyperspectral wavefront sensing with a multicore fiber [PDF]

arXiv
Single-shot hyperspectral wavefront sensing is essential for applications like spatio-spectral coupling metrology in high power laser or fast material dispersion imaging. Under broadband illumination, traditional wavefront sensors assume an achromatic wavefront, which makes them unsuitable. We introduce a hyperspectral wavefront sensing scheme based on
arxiv