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

Abstract

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).

Derivation of Rytov variance for jet engine-induced turbulence

“…About this fact, In the literature, different beams have been observed in turbulence caused by jet engines. The analytical derivative of the cosh-Gaussian beam propagating in jet engine exhaust-induced turbulence shows how the hollow region at the center of the beam expands with increasing beam parameters [1]. In another study, the authors derive the received field by solving the Huygens-Fresnel integral with a corresponding power spectrum and examine the propagation of hyperbolic sinusoidal Gaussian (HSG) beams in jet engine exhaust-induced turbulence [2].…”

Evolution behavior of pulsed chirped Laguerre higher-order cosh-Gaussian beam propagating through liver tissue

“…Understanding the dynamics governing the interaction of light with biological mediums is crucial for the development of bio-optical disease detection and treatment technology. Several studies have analyzed the intensity profile and beam spreading of different beams for soft tissue mediums, including impact partially coherent circularly flattened Gaussian vortex beam (Ni et al 2019), Hermite-Gaussian rectangular vortex beam (Li et al, 2022) Hermite Gaussian correlated Schell-model beams (Zhang et al 2021), hollow higher order cosh-Gaussian beam (Bayraktar et al 2023), Gaussian-Schell model vortex beams (Duan et al 2020), partially coherent chirped optical coherence vortex lattices (Cheng et al, 2022), partially coherent beam (Chib et al 2023), partially coherent hyperbolic sinusoidal beam (Bayraktar, 2021c) and pulsed chirped Generalized Hermite cosh-Gaussian beams ). We chose pulsed cLhchGB due to it includes several parts such as chirped factor, Laguerre polynomial, and higher-order cosh function.…”

Propagation of hollow higher-order cosh-Gaussian beam in oceanic turbulence

“…Despite the fact that laser beams of hollow nature have been widely used in many applications and their behaviour in different random mediums has been investigated (Li 2021;Saad and Belafhal 2021;Bayraktar 2022;Ebrahim et al 2022;Zhao et al 2022). In the literature, the propagation of such beams in oceanic turbulence is limited to some beam types namely flat-topped vortex hollow beam (Liu et al 2015;Liu et al 2016), partially coherent anomalous hollow vortex beam (Liu et al 2019) and hollow Gaussian-Schell model vortex beam (Wang et al 2021).…”