Results 31 to 40 of about 31,732 (215)

Decoherence of Higher Order Orbital Angular Momentum Entangled State in Non-Kolmogorov Turbulence

open access: yesPhotonics, 2022
The decay of OAM entanglement in non-Kolmogorov turbulence has been numerically evaluated. In this work, we explore the evolution of OAM entanglement with higher-order OAM mode in the weak scintillation regime. In particular, the results of the numerical
Xiang Yan   +3 more
doaj   +1 more source

Modulation Transfer Function of a Gaussian Beam Based on the Generalized Modified Atmospheric Spectrum

open access: yesInternational Journal of Optics, 2016
This paper investigates the modulation transfer function of a Gaussian beam propagating through a horizontal path in weak-fluctuation non-Kolmogorov turbulence. Mathematical expressions are obtained based on the generalized modified atmospheric spectrum,
Chao Gao, Xiaofeng Li
doaj   +1 more source

Angular anisoplanatism in non-Kolmogorov turbulence over horizontal paths

open access: yesJournal of the Optical Society of America A, 2020
We use Mellin-transform techniques to derive generalized expressions for the piston-removed and piston-and-tilt-removed anisoplanatic error in non-Kolmogorov turbulence with a finite outer scale. We use these expressions to investigate the behavior of the anisoplanatic error when imaging over long horizontal paths where the angular ...
Jeffrey R. Beck, Jeremy P. Bos
openaire   +2 more sources

Angle of arrival Fluctuations for Laser Beam Propagation through non Kolmogorov turbulence [PDF]

open access: yes, 2007
Atmospheric turbulence induces significant variation on the angle-of-arrival of laser beams used in free space laser communication. Angle-of-arrival fluctuations of an optical wave in the plane of the receiver aperture can be described in terms of the ...
Ferrero, Valter   +3 more
core   +1 more source

Generalized atmospheric turbulence MTF for wave propagating through non-Kolmogorov turbulence

open access: yesOptics Express, 2010
A generalized exponential spectrum model is derived, which considers finite turbulence inner and outer scales and has a general spectral power law value between the range 3 to 5 instead of standard power law value 11/3. Based on this generalized spectrum model, a new generalized long exposure turbulence modulation transfer function (MTF) is obtained ...
Lin-yan, Cui   +4 more
openaire   +2 more sources

(1+1)-dimensional turbulence

open access: yes, 1996
A class of dynamical models of turbulence living on a one-dimensional dyadic-tree structure is introduced and studied. The models are obtained as a natural generalization of the popular GOY shell model of turbulence.
Desnyansky V. N.   +8 more
core   +1 more source

Nonthermal Emissions from Particles Accelerated by Turbulence in Clusters of Galaxies [PDF]

open access: yes, 2002
We consider nonthermal emission from clusters of galaxies produced by particle acceleration by resonant scattering of Alfv\'{e}n waves driven by fluid turbulence through the Lighthill mechanism in the intracluster medium. We assume that the turbulence is
Bykov A. M.   +13 more
core   +2 more sources

Equivalent refractive-index structure constant of non-Kolmogorov turbulence: comment

open access: yesOptics Express, 2022
The paper by Y. Li, W. Zhu, X. Wu, and R. Rao entitled “Equivalent refractive-index structure constant of non-Kolmogorov turbulence,” Opt. Express 23(18), 23004 (2015).10.1364/OE.23.023004 relates the non-Kolmogorov turbulence structure constant to the classical structure constant for Kolmogorov turbulence by imposing equality of their respective ...
Italo, Toselli, Szymon, Gladysz
openaire   +2 more sources

On developed superfluid turbulence

open access: yes, 2004
Superfluid turbulence is governed by two dimensionless parameters. One of them is the intrinsic parameter q which characterizes the relative value of the friction force acting on a vortex with respect to the non-dissipative forces.
Volovik, G. E.
core   +2 more sources

Energy flux measurement from the dissipated energy in capillary wave turbulence [PDF]

open access: yes, 2013
We study experimentally the influence of dissipation on stationary capillary wave turbulence on the surface of a fluid by changing its viscosity. We observe that the frequency power law scaling of the capillary spectrum departs significantly from its ...
Berhanu, Michaël   +2 more
core   +5 more sources

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