Propagation analysis of Whittaker–Gaussian laser beam in a gradient-index medium

Nossir, N.; Dalil-Essakali, L.; Belafhal, A.

doi:10.1007/s11082-023-05317-3

Cited by 10 publications

(3 citation statements)

References 46 publications

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“…These characteristics are a subset of standard circular beams (Bandres and Gutiérrez-Vega 2008) and can be represented by two special functions one is the Whittaker the other is the confluent hypergeometric functions and are expressed by a number of independent factors that allow the beam to be solicited in a variety of application fields. This profile flexibility has piqued the interest of laser researchers in recent years, so certain works have been dedicated to this family of beams for example, the radiation force produced by the Whittaker-Gaussian beam, as well as their propagation properties through a gradient-index medium and in a turbulent environment, have been investigated (Tang et al 2018;Nossir et al 2023aNossir et al , 2023b.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the effect of oceanic turbulence on spreading properties of the Whittaker-Gaussian laser beam

Nossir,

Dalil-Essakali,

Belafhal

2024

Preprint

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This paper explores the spreading feature of the Whittaker-Gaussian light beam (WG) propagating through turbulent oceanic environments by utilizing the diffraction integral formula and under the Rytov approximation theory. From the analytical formula, some numerical simulations are derived and analyzed to examine the evolution of the axial intensity of the corresponding beam propagating through oceanic turbulence. The outcomes that were achieved show that the development of the variation of the intensity of the WG beam depends strongly on its starting parameters and oceanic variables including the wavelength, the beam waist, the dissipation rate of mean-square temperature, the ratio of temperature to salinity fluctuation and the dissipation rate of turbulent kinetic energy per unit mass of ocean. The outcomes acquired by our simulations have significant applications in the fields of subsea optical communication and imaging technologies.

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Section: Introductionmentioning

confidence: 99%

Analyzing the effect of oceanic turbulence on spreading properties of the Whittaker-Gaussian laser beam

Nossir,

Dalil-Essakali,

Belafhal

2024

Preprint

Self Cite

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“…There has long been a great deal of theoretical and practical interest in the propagation of laser beams over atmospheric turbulence (Hajjarian et al, 2010;Gbur et al, 2014;Benzehoua et al, 2023b;Chib et al, 2020;Nossir et al, 2021Nossir et al, , 2023a. Due to the intricacy of oceanic turbulence, laser beam propagation through it is comparatively less studied than that via atmospheric turbulence.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of Bessel higher-order cosh- and sinh-Gaussian beams spreading through oceanic turbulence

Nossir,

Dalil-Essakali,

Belafhal

2024

Opt Quant Electron

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The purpose of this paper is to explore the evolution behavior of two important laser features: the Bessel higher-order cosh-Gaussian (BHoChG) beam and the Bessel higher-order sinh-Gaussian (BHoShG) beam propagating through turbulent oceanic environments.Benefiting from the extended Huygens-Fresnel principle, the analytical formulas for the average intensity of the beams passing through oceanic turbulence are derived. The propagation of some laser beams through oceanic turbulence is also deduced as particular cases from the present study. The effects of oceanic turbulence parameters and the source beam parameters are examined to understand their influence on the intensity distribution of the considered beams by using numerical simulations. Our results show that the spreading of these beams depends on their initial parameters and oceanic parameters. Hence, the propagation of the studied beams through oceanic turbulent will be faster with the smaller dissipation rate of the mean square temperature, larger salinity fluctuations, higher rate of dissipation of turbulent kinetic energy per unit mass of fluid and with decreasing the beam width and the parameter  . The outputs of this study have useful applications in optical underwater communication, remote sensing, imaging and others.

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“…There has been extensive interest in studying the propagation of light laser beam propagating in biological tissue due to its wide range of applications in medical optics such as biomedical imaging and optical coherence tomography, as well as for disease diagnosis or screening purposes (de Boer et al 1997;Hitzenberger et al 2001;Gao 2006;Mallidi et al 2011). Furthermore, biological tissue is a turbulent medium with viscous properties; its refractive index inhomogeneity is a key factor affecting light propagation which has a spatial structure that shows similarity to that of atmospheric turbulence, the ocean consists of a network of vortices or eddies Nossir et al 2021Nossir et al , 2023aBenzehoua et al 2023a;Zhang et al 2019;Gbur 2014). In other words, the laser beam propagation interacts with the biological tissues to develop bio-optical disease detection and treatment technology in different forms such as refection, refraction, interference, scattering, attenuation, polarization, scintillation and so on, due to the integrated effect of these random phenomena (Martelli et al 2009;Andrews and Phillips 2005;Gao and Korotkova 2007;Ishimaru 1978).…”

Section: Introductionmentioning

confidence: 99%

A study of the comparison of some laser beams spreading through human and mouse biological tissues

Nossir,

Dalil-Essakali,

Belafhal

2024

Preprint

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Aiming at the Bessel higher-order cosh-Gaussian (BHoChG) beam and the Bessel higher-order sinh-Gaussian (BHoShG) beam, we investigate their propagation properties through turbulent biological tissues. In this respect, the analytical expression of the considered beams is obtained and developed, based on the extended Huygens-Fresnel integral. By numerical simulation, the intensity distributions of these beams for biological tissue types including intestinal epithelium and deep dermis of mouse in addition the human upper dermis versus the propagation distance as a function of the variations of the laser beam parameters. The obtained results indicate that the resistance of our beams against turbulent biological tissues increases as the source parameter increases counting the decentered parameter, the beam-order of the considered beams and the beam waist width. The findings show that the intensity distribution of the propagation of these beams occurs more quickly when they pass through the deep dermis of the mouse. The results presented in this paper are significant due to their potential application in determining the deterioration or disruption of biological tissue, medical imaging and medical diagnosis.

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Propagation analysis of Whittaker–Gaussian laser beam in a gradient-index medium

Cited by 10 publications

References 46 publications

Analyzing the effect of oceanic turbulence on spreading properties of the Whittaker-Gaussian laser beam

Analyzing the effect of oceanic turbulence on spreading properties of the Whittaker-Gaussian laser beam

Comparative analysis of Bessel higher-order cosh- and sinh-Gaussian beams spreading through oceanic turbulence

A study of the comparison of some laser beams spreading through human and mouse biological tissues

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