Results 1 to 10 of about 1,417 (115)

Robust far-field imaging by spatial coherence engineering

open access: yesOpto-Electronic Advances, 2021
The degree of coherence (DOC) function that characterizes the second-order correlations at any two points in a light field is shown to provide a new degree of freedom for carrying information.
Yonglei Liu   +5 more
doaj   +3 more sources

Linear Combinations of the Complex Degrees of Coherence [PDF]

open access: yesPhotonics, 2021
We propose a method for structuring the spatial coherence state of light via mixed linear combinations of N complex degrees of coherence (CDC) and specify the conditions under which such combinations represent a valid CDC.
Zhangrong Mei, Olga Korotkova
doaj   +2 more sources

Interferometric SAR Coherence Magnitude Estimation by Machine Learning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Current interferometric wide area ground motion services require the estimation of the coherence magnitude as accurately and computationally effectively as possible.
Nico Adam
doaj   +1 more source

Corrections to “Propagation Properties of Gaussian Schell-Model Beam Array in the Jet Engine Exhaust Induced Turbulence” [Dec 20 Art no. 6501113]

open access: yesIEEE Photonics Journal, 2022
We correct a few typographical errors in the original manuscript.
Yuqiu Zhang   +6 more
doaj   +1 more source

Polarization dependent beaming properties of a plasmonic lattice laser

open access: yesNew Journal of Physics, 2021
We study beaming properties of laser light produced by a plasmonic lattice overlaid with organic fluorescent molecules. The crossover from spontaneous emission regime to stimulated emission regime is observed in response to increasing pump fluence.
Benjamin O Asamoah   +10 more
doaj   +1 more source

FOCUS: fast Monte Carlo approach to coherence of undulator sources

open access: yesJournal of Synchrotron Radiation, 2023
FOCUS (Fast Monte CarlO approach to Coherence of Undulator Sources) is a new GPU-based simulation code to compute the transverse coherence of undulator radiation from ultra-relativistic electrons.
M. Siano   +10 more
doaj   +1 more source

Determination of a source’s temporal coherence function via depolarization in liquid crystal [PDF]

open access: yesEPJ Web of Conferences, 2022
Based on the fact that the degree of polarization of a light source is given in terms of the absolute value of its complex degree of coherence, we design a depolarization experiment using a variable retarder in which we measured the degree of ...
Hernández Cely Cristian Eduardo   +1 more
doaj   +1 more source

Empirical Bayesian Estimation of the Interferometric SAR Coherence Magnitude

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
SAR interferometry has developed rapidly in recent years and now allows measurements of subtle deformation of the Earth's surface with millimeter accuracy. All state-of-the-art processing methods require a precise coherence estimate. However, this
Nico Adam
doaj   +1 more source

Coherence in the radial degree of freedom

open access: yesJournal of the Optical Society of America A, 2023
Coherence quantifies the statistical fluctuations in an optical field and has been extensively studied in the space, time, and polarization degrees of freedom. In the context of space, coherence theory has been formulated between two transverse positions as well as between two azimuthal positions, referred to as transverse spatial coherence and angular
Bhattacharjee, Abhinandan   +3 more
openaire   +2 more sources

EEG effective connectivity networks for an attentive task requiring vigilance based on dynamic partial directed coherence [PDF]

open access: yesJournal of Integrative Neuroscience, 2020
An effective network perspective focused on measuring directional interactions of electroencephalographic in different cortical regions during a sustained attentive task requiring vigilance.
Songyun Xie, Yabing Li
doaj   +1 more source

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