Results 41 to 50 of about 161,946 (330)

Compact representations of partially coherent undulator radiation suitable for wave propagation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2015
Undulator radiation is partially coherent in the transverse plane, with the degree of coherence depending on the ratio of the electron beam phase space area (emittance) to the characteristic radiation wavelength λ. On the other hand, numerical codes used
Ryan R. Lindberg, Kwang-Je Kim
doaj   +1 more source

Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber

open access: yesApplied Sciences, 2018
We study the problem of coupling partially coherent radially polarized (PCRP) vortex beams into a single-mode optical fiber. Using the well-known concept of the cross-spectral density (CSD) matrix, we derive a general expression for the coupling ...
Xinlei Zhu   +4 more
doaj   +1 more source

Four-dimensional experimental characterization of partially coherent light using incoherent modal decomposition

open access: yesNanophotonics, 2023
The intensity distributions and statistics of partially coherent light fields with random fluctuations have proven to be more robust than for coherent light.
Lu Xingyuan   +4 more
doaj   +1 more source

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   +8 more sources

Correlation-induced self-focusing and self-shaping effect of a partially coherent beam

open access: yesHigh Power Laser Science and Engineering, 2016
A new specially correlated partially coherent beam named nonuniform multi-Gaussian correlated (NMGC) partially coherent beam is introduced. The correlation functions of such beam in $x$ and $y$ directions are different from each other, i.e., nonuniform ...
Yahong Chen, Y. Cai
semanticscholar   +1 more source

Continuous-Variable Quantum State Transfer with Partially Disembodied Transport [PDF]

open access: yes, 2005
We propose a new protocol of implementing continuous-variable quantum state transfer using partially disembodied transport. This protocol may improve the fidelity at the expense of the introduction of a semi-quantum channel between the parties, in ...
Changde Xie   +5 more
core   +1 more source

Partially Coherent, Radially Polarized Beam with Annular Apodization

open access: yesThe Scientific World Journal, 2014
Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to ...
C. Mariyal   +3 more
doaj   +1 more source

Characteristics of Partially Coherent Circular Flattened Gaussian Vortex Beams in Turbulent Biological Tissues

open access: yesApplied Sciences, 2019
The characteristics of partially coherent circular flattened Gaussian vortex beams in turbulent biological tissues are investigated, and the analytical formula for the cross-spectral density of this beam is derived.
Yongzhou Ni   +3 more
doaj   +1 more source

Goos-H\"{a}nchen Shifts of Partially Coherent Light Fields [PDF]

open access: yes, 2013
We investigate the Goos-H\"{a}nchen (GH) shifts of partially coherent fields (PCFs) by using the theory of coherence. We derive a formal expression for the GH shifts of PCFs in terms of Mercer's expansion, and then clearly demonstrate the dependence of ...
Wang, Li-Gang   +2 more
core   +3 more sources

Discrete solitons and soliton-induced dislocations in partially-coherent photonic lattices

open access: yes, 2004
We investigate the interaction between a light beam and a two-dimensional photonic lattice that is photo-induced in a photorefractive crystal using partially coherent light.
Chen, Zhigang   +3 more
core   +1 more source

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