Results 11 to 20 of about 374,145 (293)

Average Intensity and Beam Quality of Hermite-Gaussian Correlated Schell-Model Beams Propagating in Turbulent Biological Tissue

open access: yesFrontiers in Physics, 2021
The propagation characteristics of a Hermite-Gaussian correlated Schell-model (HGCSM) beam in the turbulence of biological tissue are analyzed. The average intensity, spectral degree of coherence, and the dependence of the propagation factors on the beam
Hanghang Zhang   +4 more
doaj   +1 more source

The complex Jacobi iterative method for non-paraxial beam propagation in nonlinear optical waveguides [PDF]

open access: yes, 2009
The recently introduced beam propagation method using complex Jacobi iteration adapted for modeling of non-paraxial beam propagation in nonlinear optical waveguides is presented in this paper.
Bienstman, Peter, Le Quang, Khai
core   +1 more source

Transmission dynamics of circular–linear edge dislocation solitons in nonlocal nonlinear media

open access: yesResults in Physics, 2022
In this paper, the nonlinear propagation dynamics of circular–linear edge dislocation beams (CLED beams) in nonlocal media are studied theoretically. The transport formulae of CLED beams in nonlocal nonlinear media is derived.
Jia-Qi Liu   +5 more
doaj   +1 more source

Role of beam propagation in Goos-H\"{a}nchen and Imbert-Fedorov shifts [PDF]

open access: yes, 2008
We derive the polarization-dependent displacements parallel and perpendicular to the plane of incidence, for a Gaussian light beam reflected from a planar interface, taking into account the propagation of the beam.
A. Aiello   +15 more
core   +2 more sources

Analytic expression and propagation properties of hollow Gaussian beams for the off-waist incident case in strongly nonlocal media

open access: yesResults in Physics, 2018
In this paper, the propagation properties of hollow Gaussian beams (HGBs) are discussed in detail when they are off-waist incident in strongly nonlocal media. A set of mathematic expressions are given to describe the evolutions of the beam intensity, the
Zhiping Dai, Xiaohui Ling, Shiqing Tang
doaj   +1 more source

Beam positioning stability analysis on large laser facilities

open access: yesHigh Power Laser Science and Engineering, 2013
Beam positioning stability in a laser-driven inertial confinement fusion (ICF) facility is a vital problem that needs to be fixed. Each laser beam in the facility is transmitted in lots of optics for hundreds of meters, and then targeted in a micro-sized
Fang Liu   +4 more
doaj   +1 more source

Interplay between multiple scattering and optical nonlinearity in liquid crystals [PDF]

open access: yes, 2018
We discuss the role played by time-dependent scattering on light propagation in liquid crystals. In the linear regime, the effects of the molecular disorder accumulate in propagation, yielding a monotonic decrease in the beam spatial coherence.
Alberucci, Alessandro   +4 more
core   +1 more source

Needle beams: a review

open access: yesAdvances in Physics: X, 2020
Needle beams are highly attractive for applications which take advantage from a spatial and temporal localization of photons. High intensities, high resolution and extended depth of focus lead to fundamental advances in the optical system performance ...
Ruediger Grunwald, Martin Bock
doaj   +1 more source

Experimental investigation in Airy transform of Gaussian beams with optical vortex

open access: yesResults in Physics, 2021
The Airy transform was first introduced for a Gaussian beam, and the output beam is an Airy beam. When the Gaussian beam is extended to the Gaussian beam with optical vortex, what kind of output beam will be achieved by executing the Airy transformation.
Yi-Qing Xu   +5 more
doaj   +1 more source

Radial phased-locked Laguerre-Gaussian correlated schell-model beam array

open access: yesHeliyon, 2022
A new beam array called radial phased-locked Laguerre-Gaussian correlated Schell-model (LGCSM) beam array is presented, the beamlet of this beam array is partially coherent beam with Laguerre Gaussian-Schell model correlation.
Yaotian Yan   +5 more
doaj   +1 more source

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