Analyzing the spreading properties of vortex beam in turbulent biological tissues

Chib, S.; Belafhal, A.

doi:10.1007/s11082-022-04367-3

Cited by 14 publications

(7 citation statements)

References 39 publications

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“…It is commonly recognized that variations in salinity and temperature affect the refractive index of oceanic turbulence. Research on the effects of oceanic water temperature and salinity fluctuations, as well as the degree of polarization, mutual coherence function, spreading spherical waves, scintillation index, beam wander and average aperture on laser beam propagation have all been extensively studied (Chen et al, 2013;Lu et al, 2014;Baykal, 2016;Yang et al, 2017;Chib et al, 2023;Alharbi et al 2022).…”

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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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 provided results show that beams with smaller orbital angular momentum quantum numbers and larger initial half-pulse width are able to mitigate the turbulence effects. In addition, the propagation of Laguerre-Gaussian vortex and circular Laguerre-cosh-Gaussian beams in turbulent mouse biological tissues is studied in [7,8]. Accordingly, intensity evolution of partially coherent Flattened Hermite Cosh-Gaussian beam in turbid tissue like scattering medium is studied in [9].…”

Section: Introductionmentioning

confidence: 99%

Propagation of hollow higher-order cosh-Gaussian beam in human upper dermis

Bayraktar,

Elmabruk,

Duncan

et al. 2023

Phys. Scr.

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Optical detection, measurement, and treatment methods are widely used in the medical industry nowadays. The evolution of radiated beams, received power and beam size play vital roles while developing devices. The propagation properties of hollow higher-order cosh-Gaussian beam (HHOCGB) while propagating in human upper dermis tissue are derived analytically and analyzed numerically. The impact of the hollowness parameter, beam order, operating wavelength, and Gaussian beam waists on the beam’s intensity profile is examined. Received power and beam size variations are analyzed considering operating wavelength and Gaussian waist width. According to the results, as the beam propagates, its profile rapidly evolves into a shape with a circular Gaussian peak in the center and petals at the corner. Dark hollow regions are observed among the petals. Furthermore, the received power by HHOCGBs with a higher Gaussian waist width is more than those received by beams with a lower Gaussian waist width. However, at far field, operating at a lower wavelength prevents the increase of the beam spread. Thus, the obtained results will be significant in the bio-optical disease detection and treatment technology development.

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“…Furthermore, it was recently revealed that, by means of a spiral orthogonal zone plate, one may employ different sorts of optical vortices (Rafighdoost and Sabatyan 2016). In recent years, several papers have examined the creation of a laser beam with phase singularities (Khonina et al 1992;Saad et al 2016;Ebrahim et al 2017;Nossir et al 2021;Belafhal and Nebdi 2014;Belafhal and Saad 2017;Chib et al 2023a;Chib et al 2023b;El Halba et al 2022;El Halba et al 2017;Ebrahim et al 2022). In 2016, Sabatyan et al (Sabatyan et al 2016) are treated the generation of the square array of optical vortices by a multiregional spiral square zone plate (MRSSZP), which is subdivided into a few regions.…”

Section: Introductionmentioning

confidence: 99%

Generation of optical vortices by flat-topped beam diffracted with a radial phase shift spiral zone plate

Nossir,

Dalil-Essakali,

Belafhal

2023

Preprint

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In this work, we investigate the generation of optical vortices by means of the so-called radial-phase shift spiral zone plate (RSSZP) from a flat-topped beam (FTB). Based on the process of the extended Huygens-Fresnel integral, an analytical formulation of the field distribution for the generated beam is developed. The evolution of the intensity distribution of the diffracted beam is numerically illustrated by studying the effects of some parameters. Moreover, it is established that the characteristics of the intensity of the generated beam is increased with the beam waist, on the contrary, this intensity is decreased by the augmentation of the beam order N. Furthermore, it is demonstrated that in the case of the topological charge equal to zero. The behavior of the beam is converted into a fundamental Gaussian. However, it is found that, for the topological charge superior to zero we have a vortex beam. In addition, it can be noted that the increase of the beam order leads the dark part size becomes large. In addition, as the shifting parameter is increased, the lobes appear larger. Finally, this research may be useful in different applications such as in optical switches and micromanipulation.

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Analyzing the spreading properties of vortex beam in turbulent biological tissues

Cited by 14 publications

References 39 publications

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

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

Propagation of hollow higher-order cosh-Gaussian beam in human upper dermis

Generation of optical vortices by flat-topped beam diffracted with a radial phase shift spiral zone plate

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