Results 11 to 20 of about 142,742 (388)

Deep learning wavefront sensing and aberration correction in atmospheric turbulence

open access: yesPhotoniX, 2021
Deep learning neural networks are used for wavefront sensing and aberration correction in atmospheric turbulence without any wavefront sensor (i.e. reconstruction of the wavefront aberration phase from the distorted image of the object).
Kaiqiang Wang   +9 more
semanticscholar   +1 more source

On Machine Learning Approaches for Automated Log Management [PDF]

open access: yesJournal of Universal Computer Science, 2019
We address several problems in intelligent log management of distributed cloud computing applications and their machine learning solutions. Those problems concern various tasks on characterizing data center states from logs, as well as from related or ...
Ashot Harutyunyan   +4 more
doaj   +3 more sources

A review of dielectric optical metasurfaces for wavefront control [PDF]

open access: yesNanophotonics, 2018
During the past few years, metasurfaces have been used to demonstrate optical elements and systems with capabilities that surpass those of conventional diffractive optics.
Seyedeh Mahsa Kamali   +3 more
semanticscholar   +1 more source

Communication with face masks during the COVID-19 pandemic for adults with hearing loss

open access: yesCognitive Research, 2022
Face masks have become common protective measures in community and workplace environments to help reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Face masks can make it difficult to hear and understand speech,
Brenda T. Poon, Lorienne M. Jenstad
doaj   +1 more source

Geometric Phase in Optics: From Wavefront Manipulation to Waveguiding

open access: yesLaser & Photonics reviews, 2021
Geometric phase is a unifying and central concept in physics, including optics. As a matter of fact, optics played a pivotal role from the inception of this new paradigm, as some of the first experimental demonstrations have been carried out in optics. A
C. Jisha, Stefan Nolte, A. Alberucci
semanticscholar   +1 more source

Besov wavefront set

open access: yesAnalysis and Mathematical Physics, 2023
AbstractWe develop a notion of wavefront set aimed at characterizing in Fourier space the directions along which a distribution behaves or not as an element of a specific Besov space. Subsequently we prove an alternative, albeit equivalent characterization of such wavefront set using the language of pseudodifferential operators.
Dappiaggi, C, Rinaldi, P, Sclavi, F
openaire   +3 more sources

Binary Amplitude Reflection Gratings for X-ray Shearing and Hartmann Wavefront Sensors

open access: yesSensors, 2021
New, high-coherent-flux X-ray beamlines at synchrotron and free-electron laser light sources rely on wavefront sensors to achieve and maintain optimal alignment under dynamic operating conditions. This includes feedback to adaptive X-ray optics.
Kenneth A. Goldberg   +2 more
doaj   +1 more source

Fast gap-affine pairwise alignment using the wavefront algorithm

open access: yesBioinformatics, 2020
Motivation Pairwise alignment of sequences is a fundamental method in modern molecular biology, implemented within multiple bioinformatics tools and libraries.
Santiago Marco-Sola   +3 more
semanticscholar   +1 more source

Method for calculating a refractive optical element forming given illuminance distribution and wavefront

open access: yesКомпьютерная оптика, 2021
In the geometrical optics approximation, we consider a method for calculating a refractive optical element with two freeform surfaces, which transforms an incident beam with a plane wave-front into an output beam with a required wavefront and generating ...
L.L. Doskolovich   +3 more
doaj   +1 more source

One-Dimensional High-Resolution Wavefront Sensor Enabled by Subwavelength Compound Gratings

open access: yesPhotonics, 2023
Angle sensors are widely used for wavefront measurements, which is attributed to their integration and robustness. Currently, commercial sensors are available with pixel sizes in the order of wavelengths.
Yunlong Meng   +6 more
doaj   +1 more source

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