A theoretical investigation on the propagation properties of Hollow Gaussian beams passing through turbulent biological tissues

Saad, Faroq; Belafhal, A.

doi:10.1016/j.ijleo.2017.05.054

Cited by 26 publications

(9 citation statements)

References 27 publications

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“…Also, the impact of turbulent biological tissue on the propagation properties of coherent Laguerre-Gaussian beams is examined where it was found that the profile of the coherent circular/elliptical Laguerre-Gaussian beams becomes a Gaussian-like profile as propagating in turbulent biological tissues in the far-field [4]. Besides, the intensity distribution of Hollow Gaussian beams while propagating in biological tissue is derived analytically in [5]. According to this study, Hollow Gaussian beams evolve into a Gaussian beam as propagating longer in biological tissue.…”

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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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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“…The progress of medicine and molecular biology had made of the turbulent biological tissues another important propagation environment. To understand the interactions between light beams and biological tissues, the spreading of optical beams through these mediums becomes an essential issue that is receiving intense trends from researchers (Jin et al 2016;Wu et al 2016;Baykal et al 2017;Saad and Belafhal 2017;Gökçe et al 2020;Ebrahim and Belafhal 2021). Especially since the average intensity and propagation of laser beams play crucial roles in biophotonics research as a way of collecting quantitative data for cancer diagnosis or screening (Yi and Backman 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Vortex beams are one type of these beams. For these features, a considerable number of research has been conducted about the propagation of stochastic electromagnetic vortex beams (Luo et al 2014;Duan et al 2020), anomalous hollow Gaussian beams (Lu et al 2016), and Circular and elliptical hollow Gaussian beams (Saad and Belafhal 2017) through turbulent biological tissues. Up to now, the Circular Laguerre-Gaussian beams have been successively introduced and analyzed by Ebrahim and Belafhal (Ebrahim and Belafhal 2021).…”

Section: Introductionmentioning

confidence: 99%

Analyzing the spreading properties of vortex beam in turbulent biological tissues

Chib

Belafhal

2022

Opt Quant Electron

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Presenting the intensity development of a circular Laguerre-cosh-Gaussian (CLChG) beam in turbulent mouse biological tissues is the major goal of the current work. Using the power spectrum refractive index from Schmitt's model and the extended Huygens-Fresnel integral, the propagation formula of the CLChG beam is produced. In order to determine the spreading properties of the studied beam, analytical expressions of the CLChG beam's effective beam size in turbulent mouse biological tissues are constructed. Some graphical representations have to be carried out in order to discover the impacts of beam and biological turbulence parameters on this sort of beam. The findings show that the transformation of the CLChG beam into a Gaussian-like beam in the far field occurs more quickly when the beam passes through the deep dermis of the mouse. The shape of the CLChG beam can also be changed by choosing a specific value for the parameter linked to the cosh-part. Because the effective beam spot radius along the x-and y-axis are equal, we also see that the beam spot in biological tissues takes on a circular shape.

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“…On the other hand, optical vortex beams have always attracted much attention due to their wide applications (Molina-Terriza et al 2001;Yin et al 2003;Gibson et al 2004) and there are many methods to produce optical vortex family experimentally (Strohaber et al 2007, Tokizane et al 2009Bekshaev et al 2012). In this regard, through any biological tissue, the treatment of circular and elliptical of hollow and anomalous hollow Gaussian beams (Saad and Belafhal 2017;Lu et al 2016) and the statistical properties of stochastic vortex beams (Luo et al 2014) have been investigated. Other surveys have studied the propagation of vortex beams in biological tissues (Ni et al 2019;Duan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of the turbulent biological tissues on the propagation properties of Coherent Laguerre-Gaussian beams

Ebrahim

Belafhal

2021

Opt Quant Electron

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In this paper, the effects of turbulent biological tissues (TBT) on the propagation properties of the coherent Laguerre-Gaussian (CLG) beams are studied. Based on the turbulence theory and using the power spectrum refractive-index model, the expression formulae of the average irradiance intensity and spreading properties of a CLG beam propagating in TBT are derived. The influence of propagation distance, beam orders, wavelengths and tissue turbulence parameters are then investigated numerically. It found that, the central dark zone of the circular/elliptical LG beams rises more rapidly as the propagation distance and the structural constant of the refractive index of the biological tissue increase and the beams become eventually more like Gaussian beams in the far-field under the influence of the turbulence biological tissues. Also, the numerical results proved that the effective beam spot radius increases as turbulence, wavelength, and propagation distance are increasing.Ultimately, the beams become circular under the influence of the turbulence of the biological tissue.As found that the effective beam spot radius along the x-axis becomes equal to that of the y-axis in high TBT which explain why an elliptical LG beam is converted into a circular one in higher structural constant of the turbulent tissue. Moreover, our results show that, the influence of the beam order m slightly greater than that of l on the beam spreading.

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A theoretical investigation on the propagation properties of Hollow Gaussian beams passing through turbulent biological tissues

Cited by 26 publications

References 27 publications

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

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

Analyzing the spreading properties of vortex beam in turbulent biological tissues

Effect of the turbulent biological tissues on the propagation properties of Coherent Laguerre-Gaussian beams

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