Propagation of the Laguerre-Gaussian correlated Shell-model beams through a turbulent jet engine exhaust

Nabil, H.; Balhamri, Adil; Belafhal, A.

doi:10.1007/s11082-022-03623-w

Cited by 10 publications

(4 citation statements)

References 31 publications

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“…This attraction is a result of its wide applications in different fields, such as optical communication, information encoding, transmission, and lattice spectroscopy (Yadav et al 2007a(Yadav et al , 2007b(Yadav et al , 2008Han 2009). Several scientists, including our research group, have developed large-scale studies in this area (Cai 2006;Zhou and Chu 2009;Yang et al 2009;Wang et al 2010;Zhao and Cai 2011;Zhong et al 2011;Khannous et al 2015;Ez-Zariy et al 2016;Boufalah et al 2018;Ye et al 2019;Chib et al 2020;Hricha et al 2021aHricha et al , 2021bLazrek et al 2021;Nossir et al 2021;Chib et al 2022;Nabil et al 2022aNabil et al , 2022bNabil et al , 2022c. The progress of medicine and molecular biology had made of the turbulent biological tissues another important propagation environment.…”

Section: Introductionmentioning

confidence: 98%

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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Section: Introductionmentioning

confidence: 98%

Analyzing the spreading properties of vortex beam in turbulent biological tissues

Chib

Belafhal

2022

Opt Quant Electron

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“…Array distribution of normalized spectral density of Gaussian Schell-model beam array evolves into Gaussian beam at long propagation distance [8]. Additionally, RMS beam width of Laguerre-Gaussian correlated Schell-model beams with higher beam order is larger [9]. Different from jet engine induced turbulence, controllable rotating elliptical Gaussian Schell-model vortex optical coherence lattice is propagated in atmospheric turbulence and degree of coherence of beam with low beam width is higher than the one having low beam width [10].…”

Section: Introductionmentioning

confidence: 99%

Near field propagation of hollow higher-order cosh-Gaussian beam in jet engine induced turbulence

Bayraktar¹

2022

Phys. Scr.

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Propagation of hollow higher-order cosh-Gaussian (HHOCG) beam through jet engine induced turbulence is analyzed in this article. Special form of Huygens Fresnel integral is solved in order to find averaged received intensity. Since beam shows rapidly focusing behavior, intensity profile is analyzed for short propagation distances. Beam evolves into four petal shape at short distance and size of hollow in the center is directly proportional with beam parameters. Raise in these parameters brings longer focusing point along propagation axis. Surprisingly, beam shows focusing behavior along propagation. According to our results, we think that especially this focusing trend is useful for applications required line of sight alignment like directed infrared counter measure (DIRCM).

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“…Recently, it was found that regulating the correlation structure of laser beams can effectively reduce the impact of atmospheric turbulence [28]. Under this motivation, the propagation characteristics in atmospheric turbulence induced by jet engines were studied for different coherence structures, such as multi-Gaussian correlation [29], Bessel-Gaussian correlation [30], and Laguerre-Gaussian correlation [31,32] of low-coherence light. It should be pointed out that all these laser beams are assumed to propagate along a straight line in free space.…”

Section: Introductionmentioning

confidence: 99%

Laser Beam Quality of Airy Beam in the Jet Engine Exhaust Induced Turbulence

Wen,

Zhang

2023

Atmosphere

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Theoretical predictions of laser beam interactions with jet-engine-exhaust-induced turbulence are of importance for optimization of various optical systems, including LIDARs and airborne laser measurement systems. This paper is based on the extended Huygens–Fresnel diffraction integral and the Wigner distribution function, combined with the recently proposed power spectral density function of atmospheric turbulence induced by jet engine exhaust, to derive the formula for the quality factor of a partially coherent Airy beam in turbulent media induced by jet engine exhaust. Numerical calculations based on the analytical formula show that the smaller the structure constant and outer scale of the atmospheric turbulence induced by jet engine exhaust, the smaller the quality factor of a partially coherent Airy beam, indicating better laser beam quality. At the same time, the larger the generalized parameter and inner scale of the jet-engine-exhaust-induced turbulence and the longer the wavelength of the laser beam, the smaller the corresponding quality factor. The numerical results also show that reducing the coherence length of a partially coherent Airy beam and increasing its characteristic width are beneficial for reducing the quality factor in the atmospheric turbulence induced by jet engines. However, the numerical results show that increasing the coherence length of a partially coherent Airy beam and reducing its characteristic width are beneficial for reducing the quality factor in vacuum. This situation demonstrates significant differences between the interaction mechanisms of an Airy beam in vacuum and in the jet-engine-exhaust-induced turbulence. The results of our discussion contribute to clarifying the mechanism of interaction between an Airy laser beam and random media, as well as the application of a curved Airy laser beam in practical situations.

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Propagation of the Laguerre-Gaussian correlated Shell-model beams through a turbulent jet engine exhaust

Cited by 10 publications

References 31 publications

Analyzing the spreading properties of vortex beam in turbulent biological tissues

Analyzing the spreading properties of vortex beam in turbulent biological tissues

Near field propagation of hollow higher-order cosh-Gaussian beam in jet engine induced turbulence

Laser Beam Quality of Airy Beam in the Jet Engine Exhaust Induced Turbulence

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