Results 1 to 10 of about 52,952 (217)

Mutually guided light and particle beam propagation [PDF]

open access: yesScientific Reports, 2022
The polarizability of atoms and molecules gives rise to optical forces that trap particles and a refractive index that guides light beams, potentially leading to a self-guided laser and particle beam propagation.
Andres M. Castillo   +3 more
doaj   +2 more sources

Beam Propagation Factor of a Cosh-Airy Beam

open access: yesApplied Sciences, 2019
Based on the second-order moments, the analytical expression of the beam propagation factor of a cosh-Airy beam has been derived. The beam propagation factor was determined by the decay factor and the cosh parameter.
Yimin Zhou, Yiqing Xu, Guoquan Zhou
doaj   +3 more sources

Experimental investigation of LG beam propagating in actual atmospheric turbulence

open access: yesResults in Physics, 2022
The propagation properties of Laguerre-Gaussian (LG) beam are investigated experimentally in an actual turbulent atmosphere, including beam propagation, phase change, and singularity perturbation.
Yan Zhang   +3 more
doaj   +1 more source

Analytical Study on the Steady-State Thermal Blooming of Incoherent Combining Beam

open access: yesAtmosphere, 2022
The incoherent combined beam of lasers has many important applications due to its simple technology and excellent expansibility. Thermal blooming is one factor that will seriously affect the propagation of the combined beam in the atmosphere.
Ke Zhang, Quan Sun, Xiuxiang Chu
doaj   +1 more source

Parametric characterization of vortex cosine-hyperbolic-Gaussian beams

open access: yesResults in Optics, 2021
Based on the moments method, the analytical expressions for the beam propagation factor, the kurtosis parameter and the orbital angular momentum density distribution of a vortex cosh-Gaussian beam (vChGB) propagating in free space are derived.
Zoubir Hricha   +3 more
doaj   +1 more source

Average Intensity of SLVGB for Slant Path Propagation in Atmospheric Turbulent

open access: yesResults in Optics, 2021
The physical meaning of propagation characteristics of an (SLVGB) Super Lorentz vortex Gauss beam in a turbulent atmosphere is studied and analyzed. To use the method of Huygens-Fresnel integral. Likewise, to apply the ITU-R turbulence structure constant
Hussein Thary Khamees
doaj   +1 more source

Comparison between the Propagation Properties of Bessel–Gauss and Generalized Laguerre–Gauss Beams

open access: yesPhotonics, 2023
The connections between Laguerre–Gauss and Bessel–Gauss beams, and between Hermite–Gauss and cosine-Gauss beams are investigated. We review different asymptotic expressions for generalized Laguerre and Hermite polynomials of large radial/transverse order.
Colin J. R. Sheppard, Miguel A. Porras
doaj   +1 more source

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

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

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

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