Propagation propertiesof a novel generalized flattened Hermite-cosh-Gaussian light beam

Chib, S.; Dalil-Essakali, L.; Belafhal, A.

doi:10.1007/s11082-020-02406-5

Cited by 9 publications

(6 citation statements)

References 22 publications

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“…While, the well-known rectangular laser beams, which are separable inside the orthogonal direction including Four-petal Gaussian beams [41], Finite airy beams [42][43] and Hermite sinusoidal-Gaussian beams [44][45][46][47][48], are not originally vortex modes but they can be integrated by vortex phase amplitude.…”

Section: Nowadays Optical Vortex Beams Have Been Generated In Various...mentioning

confidence: 99%

Production of good quality holograms by the THz pulsed vortex beams

2022

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In this paper, we discuss the quality of holograms based on the calculation of the modulation depth. It's shown that the terahertz (THz) pulsed vortex beams play a vital role in holography filed, where two lasers with frequency difference have used. The THz vortex beams give new regions of larger frequency detuning and an important value of the modulation depth and fringe contrast (MDFC ratio) for obtaining the best holograms contrary to the Gaussian beams for which the best holograms are realized for small frequency detuning. The particular cases such as, Gaussian beam and single cycle pulses are deduced from our result. Numerical simulations are also presented to study the dependence of the MDFC ratio on the frequency detuning for THz vortex beams and Gaussian beams. This research could be beneficial in holographic interferometry, and it will firmly establish as a tool for scientific and engineering studies.

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Section: Nowadays Optical Vortex Beams Have Been Generated In Various...mentioning

confidence: 99%

Production of good quality holograms by the THz pulsed vortex beams

2022

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“…So the study of the propagation of laser beams through optical systems has received considerable interest from many reseachers (Chib et al 2020, Ebrahim et al 2022, Belafhal and Dalil-Essakali 2000, Boufalah et al 2019, El Halba et al 2017, Benzehoua and Belafhal 2023, Monin and Ustinov 2018, Augustyniak et al 2020, Dickson 1970, Mei et al 2005, Tovar 2000, Deng 2006, Gu et al 2013, Yangjian and Sailing 2006, Gao et al 2009. Particularly in a GIM, the propagation properties for several types of beams have been investigated such as Laguerre-Gaussian beams (Newstein and Rudman 1987), Ince-Gaussian beams (Gutierrez-Vega and Bandres 2005), Elegant Ince-Gaussian beams (Bai et al 2011), Airy-Gaussian beams (Deng 2011), hollow sinh-Gaussian beams (Zou et al 2017), Gaussian vortex beams (Yang et al 2020), vortex Hermite-cosh-Gaussian beams (Lazrek et al 2022), Generalized Humbert-Gaussian beam (Nossir et al 2020), Hollow higher-order cosh-Gaussian beam (Saad and Belafhal 2021), Chirped Airy beams (Feng et al 2017), hypergeometric laser beams (Kotlyar et al 2013), Bessel beams (Cao et al 2018), and so on.…”

Section: Introductionmentioning

confidence: 99%

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

Nossir,

Dalil-Essakali,

Belafhal

2023

Opt Quant Electron

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In this paper, we generate a new doughnut Humbert beam from a Whittaker-Gaussian (WG) beam propagating through a gradient-index medium (GIM). Based on the extended Huygens-Fresnel diffraction integral, the analytical expression of the intensity distribution for doughnut Humbert beam is derived and discussed through numerical examples. The obtained results indicate that the diffracted beam evolves periodically versus the propagation distance in GIM and its behavior depends interestingly on the beam initial parameters and the gradient-index parameter. Our results can be useful for some applications such as in multi-dimensional optical manipulation, remote sensing domain and imaging.

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“…[ 12 ] Additionally, it has been demonstrated that partially coherent beams help improve the resistance to turbulent media; thus, they have important applications in the systems listed above. Therefore, partially coherent beams have attracted a great deal of attention in turbulent media, including, Multi‐Gaussian Schell‐model beams, [ 13 ] Laguerre–Gaussian and Bessel–Gaussian Schell–model beams, [ 14 ] partially Coherent Generalized Flattened Hermite–Cosh–Gaussian beam, [ 15 ] Partially Coherent Hyperbolic Sinusoidal‐Gaussian beam, [ 16 ] Generalized Laguerre–Gaussian Schell‐model beam, [ 17 ] Bessel modulated‐Gaussian Schell‐model beam, [ 18 ] Generalized Flattened Hermite–Cosh–Gaussian beam, [ 19 ] Partially coherent radially and azimuthally rotating elliptical Gaussian vortex beam. [ 20 ] Some previous studies have shown that partially coherent beams are less affected by turbulence than fully coherent beams, and the review of the partially coherent beams has been discussed in detail.…”

Section: Introductionmentioning

confidence: 99%

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

Nabil,

Balhamri,

Bayraktar

et al. 2023

Annalen der Physik

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This work investigates the joint effects of jet engine exhaust‐induced turbulence and atmospheric turbulence on the propagation of a partially coherent Gaussian Schell‐model Array (GSMA) vortex beam. Using the two‐process propagation method, analytical formulae are derived for the cross‐spectral density, spectral density, degree of coherence, and beam width of the considered beam. The results show that the considered beam takes different shapes; when the spatial coherence is large, the spectral density of the GSMA vortex beam takes an elliptical shape, whereas when the spatial coherence is smaller, the spectral density remains a Gaussian shape. The evolution profile of the degree of coherence weakens gradually when the propagation distance, topological charge, and turbulence strength increase. Moreover, the profile of the degree of coherence takes the Gaussian profile when the propagation distance is longer or turbulence atmospheric is stronger. Furthermore, the results reveal that the corresponding beam spreads faster with a larger propagation distance, lower spatial coherence, and high‐strength turbulence. This study also concludes from the results that the beam is affected more when its propagation is near the jet engine exhaust, which means that this latter has a significant impact.

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Propagation propertiesof a novel generalized flattened Hermite-cosh-Gaussian light beam

Cited by 9 publications

References 22 publications

Production of good quality holograms by the THz pulsed vortex beams

Production of good quality holograms by the THz pulsed vortex beams

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

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

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