Results 21 to 30 of about 60,777 (260)
Photonics, 2023 The nonparaxial focusing of partially coherent beams in free space has been studied using the coherent-state and coherent-mode decomposition methods. Analytical expressions for the width and angular divergence of partially coherent Gaussian Schell-model (
Nikolai I. Petrov
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Linear algebraic theory of partial coherence: continuous fields and measures of partial coherence [PDF]
Journal of the Optical Society of America A, 2016 This work presents a linear algebraic theory of partial coherence for optical fields of continuous variables. This approach facilitates use of linear algebraic techniques and makes it possible to precisely define the concepts of incoherence and coherence in a mathematical way.
Ozaktas H.M., Gulcu T.C., Kutay M.A.
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Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence [PDF]
Journal of the Optical Society of America A, 2002 A linear algebraic theory of partial coherence is presented that allows precise mathematical definitions of concepts such as coherence and incoherence. This not only provides new perspectives and insights but also allows us to employ the conceptual and algebraic tools of linear algebra in applications. We define several scalar measures of the degree of
Ozaktas, H., M. +2 more
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Partially coherent light beam shaping via complex spatial coherence structure engineering
Advances in Physics: X, 2022 The techniques of optical beam shaping have enabled progress in a broad range of interdisciplinary science and engineering, owing to the unique properties and promising applications of their created structured light.
Yahong Chen, Fei Wang, Yangjian Cai
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Partially coherent sources with radial coherence
Optics Letters, 2018 Partially coherent sources with radial coherence are proposed. They present a circularly symmetric intensity profile and a degree of coherence whose absolute value only depends on the angular difference between the two considered points. In particular, the source is completely coherent at pairs of points belonging to the same radius.
G. Piquero +5 more
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Phase Retrieval for Partially Coherent Observations [PDF]
IEEE Transactions on Signal Processing, 2021 12 pages, 14 ...
Jonas Kornprobst +3 more
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Partially Coherent Channel Estimation Algorithm based on IR
Guangtongxin yanjiu, 2021 For millimeter-wave large-scale Multiple-Input Multiple-Output (MIMO) systems with hybrid precoding, due to the hardware defects in the system, random phase shifts will be introduced in the received pilots, which will make the performance of traditional ...
Gui-yong LI, Ping-an LI, He-bin LI
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Phase conjugation of twisted Gaussian Schell model beams in stimulated down-conversion
Nanophotonics, 2021 Stimulated parametric down-conversion is a nonlinear optical process that can be used for phase conjugation and frequency conversion of an optical field.
dos Santos Gustavo H. +8 more
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Propagation of partially coherent radiation using Wigner functions
Physical Review Accelerators and Beams, 2021 Undulator radiation from synchrotron light sources must be transported down a beam line from the source to the sample. A partially coherent photon beam may be represented in phase space using a Wigner function, and its transport may use some similar ...
Boaz Nash +4 more
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Modeling for Partially Spatially Coherent Vortex Beams
IEEE Photonics Journal, 2017 We propose a method for modeling a wide class of partially spatially coherent vortex beams. It is shown that any member of such beams can be represented as an incoherent superposition of fully coherent vortex models weighted by a non-negative weighting ...
Zhangrong Mei
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