Results 21 to 30 of about 106,631 (202)

Numerical Approach for Studying the Evolution of the Degrees of Coherence of Partially Coherent Beams Propagation through an ABCD Optical System

open access: yesApplied Sciences, 2019
In this paper, we propose a numerical approach to simulate the degree of coherence (DOC) of a partially coherent beam (PCB) with a Schell-model correlator in any transverse plane during propagation.
Pujuan Ma   +10 more
doaj   +1 more source

Geometric interpretation of the three-dimensional coherence matrix for nonparaxial polarization [PDF]

open access: yes, 2004
The three-dimensional coherence matrix is interpreted by emphasizing its invariance with respect to spatial rotations. Under these transformations, it naturally decomposes into a real symmetric positive definite matrix, interpreted as the moment of ...
Dennis, MR   +2 more
core   +1 more source

A method for estimating coherence of molecular mechanisms in major human disease and traits

open access: yesBMC Bioinformatics, 2020
Background Phenotypes such as height and intelligence, are thought to be a product of the collective effects of multiple phenotype-associated genes and interactions among their protein products.
Mikhail G. Dozmorov   +5 more
doaj   +1 more source

Low-Coherence Interferometric Imaging: Solution of the One-Dimensional Inverse Scattering Problem [PDF]

open access: yes, 2004
Optical coherence tomography (OCT) is a non-invasive imaging technique based on the use of light sources exhibiting a low degree of coherence. Low coherence interferometric microscopes have been successful in producing internal images of thin pieces of ...
Chaubell, Mario Julián
core   +1 more source

Rotation of degree of coherence and redistribution of transverse energy flux induced by non-circular degree of coherence of twisted partially coherent sources

open access: yesOptics Express, 2022
It is known that a twisted Gaussian Schell-model (TGSM) beam with elliptical Gaussian amplitude will rotate its beam spot upon propagation because of the vortex structure of the transverse energy flux. In this paper, we study a special kind of twisted partially coherent beams named twisted Hermite-Gaussian correlated Schell model (HGCSM) beam whose ...
Gaofeng, Wu   +3 more
openaire   +2 more sources

Research Paper: The Entanglement of Three-mode Spin Coherent States [PDF]

open access: yesفیزیک کاربردی ایران, 2021
In this study, the detection method of entanglement of 3-mode spin coherence states is investigated. For this purpose, by properly defining the computational codes, these states are mapped to a three qubit quantum state, and then, by using the Mermin ...
Kaveh Pasandideh   +1 more
doaj   +1 more source

Linear Combinations of the Complex Degrees of Coherence

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   +1 more source

Enhancing the self-reconstruction ability of the degree of coherence of a light beam via manipulating the cross-phase structure [PDF]

open access: yes, 2021
The degree of coherence function of a light beam could be used for optical encryption, robust optical imaging, and other purposes. However, recent works demonstrated that it has a puny self-reconstruction ability that gets worse as the obstacle is ...
Ruixuan Pan   +19 more
core   +1 more source

Single-shot transverse coherence in seeded and unseeded free-electron lasers: A comparison

open access: yesPhysical Review Accelerators and Beams, 2022
The advent of x-ray free-electron lasers (FELs) drastically enhanced the capabilities of several analytical techniques, for which the degree of transverse (spatial) coherence of the source is essential.
M. Pop   +21 more
doaj   +1 more source

Mixedness, Coherence and Entanglement in a Family of Three-Qubit States

open access: yesEntropy, 2022
We consider a family of states describing three-qubit systems. We derived formulas showing the relations between linear entropy and measures of coherence such as degree of coherence, first- and second-order correlation functions. We show that qubit–qubit
Joanna K. Kalaga   +3 more
doaj   +1 more source

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