Results 31 to 40 of about 514,730 (263)

3D differential phase contrast microscopy [PDF]

open access: yes, 2016
We demonstrate 3D phase and absorption recovery from partially coherent intensity images captured with a programmable LED array source. Images are captured through-focus with four different illumination patterns.
Chen, Michael, Tian, Lei, Waller, Laura
core   +2 more sources

Modeling for Partially Spatially Coherent Vortex Beams

open access: yesIEEE 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
doaj   +1 more source

High-speed transmission characteristics of nonlinear spectral broadening carrier in turbulent channel

open access: yesTongxin xuebao, 2021
The nonlinear spectral broadening light source was used as a partially coherent carrier source with high repetition frequency to carry out experimental research on high-speed information transmission in atmospheric turbulence channels.A partially ...
Tianshu WANG   +5 more
doaj   +2 more sources

Long-range azimuthal correlations for partially coherent pion emission in proton-proton collisions

open access: yesPhysics Letters B, 2020
In this paper, we investigate the influence of coherent pion emission on long-range azimuthal correlations in relativistic proton-proton collisions.
Peng Ru, Wei-Ning Zhang
doaj   +1 more source

Propagation of partially coherent radiation using Wigner functions

open access: yesPhysical 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
doaj   +1 more source

Experimental Study on Partially Coherent Optical Coherent Detection

open access: yesPhotonics
When coherent detection occurs, the polarization mismatch between signal light and local oscillator light can reduce the efficiency of coherent detection.
Jingyuan Liang   +3 more
doaj   +1 more source

Self-Healing Properties of Partially Coherent Schell-Model Beams

open access: yesIEEE Photonics Journal, 2017
Convolution expression for partially coherent beams that are partially blocked by an opaque obstacle is derived in detail in a paraxial $ABCD$ optical system.
Gaofeng Wu, Xiaoyan Pang
doaj   +1 more source

Dynamical regimes of dissipative quantum systems

open access: yes, 2013
We reveal several distinct regimes of the relaxation dynamics of a small quantum system coupled to an environment within the plane of the dissipation strength and the reservoir temperature.
Kashuba, O., Kennes, D. M., Meden, V.
core   +1 more source

Nonlocal incoherent solitons [PDF]

open access: yes, 2004
We investigate the propagation of partially coherent beams in spatially nonlocal nonlinear media with a logarithmic type of nonlinearity. We derive analytical formulas for the evolution of the beam parameters and conditions for the formation of nonlocal ...
Bang, Ole   +2 more
core   +2 more sources

Coherence effects in propagation through photonic crystals [PDF]

open access: yes, 2006
We have analytically studied how a partially coherent quasi plane wave is affected by a photonic crystal structure including a grating. The analysis is presented for spatial and temporal cases showing the possibility to determine the coherence ...
Mandatori, A.,   +4 more
core   +6 more sources

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