Results 11 to 20 of about 3,883 (302)

Effect of oceanic turbulence on the statistical features of electromagnetic optical beam [PDF]

open access: yesResults in Physics
This work deals with the intricate problem of electromagnetic optical beam propagation through oceanic turbulence. Using the extended Huygens–Fresnel principle, numerically, the behavior of the degree of cross-polarization (DOCP), electromagnetic degree ...
Hemant Kumar Singh   +2 more
doaj   +2 more sources

Propagations of Sin-Gaussian Beam with Astigmatism through Oceanic Turbulence [PDF]

open access: yesE3S Web of Conferences, 2021
The propagation behaviours of a sin-Gaussian beam (SiGB) with astigmatism in oceanic water is analysed. The analytical expressions for the average intensity of such a beam are derived by using the extended Huygens-Fresnel integral.
Zhu Kaicheng   +4 more
doaj   +3 more sources

Investigation of Oceanic Turbulence Random Phase Screen Generation Methods for UWOC [PDF]

open access: yesPhotonics, 2023
Underwater wireless optical communication (UWOC) has recently gained great research interest due to its capability of transmitting data underwater with high data rate and low latency.
Ruixian Jiang   +3 more
doaj   +2 more sources

Propagation Characteristics of Rectangular Hermite-Gaussian Array Beams Through Oceanic and Atmospheric Turbulence [PDF]

open access: yesIEEE Photonics Journal, 2023
This study investigates the propagation characteristics of rectangular Hermite-Gaussian array beams (RHGABs) through the oceanic and atmospheric turbulence considering ocean waves.
Hao Du   +7 more
doaj   +2 more sources

Performance of RSMA-Based UOWC Systems Over Oceanic Turbulence Channel With Pointing Errors [PDF]

open access: yesIEEE Open Journal of the Communications Society
Underwater optical wireless communication (UOWC) systems face significant challenges due to oceanic turbulence and pointing errors (PE), which can degrade system performance. Moreover, interference is another challenge in UOWC, considering the consistent
Ziyaur Rahman   +2 more
doaj   +2 more sources

Angle-of-arrival Fluctuation Characteristics of Gaussian Beams in Weak Oceanic Turbulence [PDF]

open access: yesGuangtongxin yanjiu, 2023
The Angle of Arrival (AOA) fluctuation caused by oceanic turbulence is the critical factor affecting the performance of underwater communication and imaging systems.
YI Xiang   +3 more
doaj   +2 more sources

Phase Correction by Adaptive Optics for Oceanic Turbulence-Affected Laser Beams [PDF]

open access: yes, 2022
Paper PTh4C.4, 2 S.We theoretically investigate the effectiveness of adaptive optics to correct phase aberrations for laser beams affected by oceanic turbulence.
Gladysz, Szymon, Toselli, Italo
core   +1 more source

Propagation of a Lorentz Non-Uniformly Correlated Beam in a Turbulent Ocean

open access: yesPhotonics, 2023
We study the propagation characteristics (spectral intensity and degree of coherence) of a new type of Lorentz non-uniformly correlated (LNUC) beam based on the extended Huygens–Fresnel principle and the spatial power spectrum of oceanic turbulence.
Dongmei Wei   +10 more
doaj   +1 more source

Experiments in Surface Gravity-Capillary Wave Turbulence [PDF]

open access: yes, 2022
Preprint version. Posted with permission from the Annual Review of fluid Mechanics, Volume 54, copyright 2022 Annual Reviews, https://www.annualreviews.org/International audienceThe last decade has seen a significant increase in the number of studies ...
Mordant, Nicolas, Falcon, Eric
core   +1 more source

Adaptive optics correction for oceanic turbulence-affected laser beams [PDF]

open access: yes, 2022
Paper JW5I.3, 2 S.We investigate theoretically the performance of adaptive-optics correction for Gaussian beams affected by oceanic turbulence. Action of adaptive optics is modeled as removal of a certain number of Zernike modes from the aberrated ...
Gladysz, Szymon, Toselli, Italo
core   +1 more source

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