Results 21 to 30 of about 68,410 (312)
Designing a self-accelerating beam by Wigner transform
Results in Physics, 2022 Based on the Wigner transform, a method for designing a self-accelerating beam is proposed. As an example, a beam traveling along an arbitrary path has been studied by modulating the phase of an optical field.
Wei Wen +4 more
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Results in Physics, 2022 The evolution characteristics of Hermite-cosine-Gaussian beams in optical nonlinear medium with spatial nonlocality are investigated theoretically in detail.
Jie Li +3 more
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Results in Physics, 2019 We propose a theoretical model for a rotating elliptical Gaussian optical coherence lattice (REGOCL) in oceanic turbulence. It is found that every sub-beam in the REGOCL maintains a controllable rotation within a certain distance, which plays a ...
Feng Ye +4 more
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IEEE Photonics Journal, 2020 By developing the complex phase perturbation for vortex pulsed beams in asymmetric oceanic turbulence and the spatiotemporal orthogonal basis for Lommel-Gaussian pulsed beam, we establish the received probability model of orbital angular momentum (OAM ...
Ye Li, Yixin Zhang, Yun Zhu
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Orbital angular momentum of an astigmatic Hermite-Gaussian beam [PDF]
Компьютерная оптика, 2018 An explicit formula for the normalized orbital angular momentum (OAM) of an elliptical Hermite-Gaussian (HG) beam of orders (0, n) focused by a cylindrical lens is obtained. In modulus, this OAM can be both greater and smaller than n.
Victor Kotlyar +2 more
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Photonics, 2023 We investigate the evolution properties of a partially coherent Laguerre–Gaussian vector vortex (LGVV) beam through inhomogeneous atmospheric turbulence. Analytical formulae for the elements of a cross-spectral density matrix of a partially coherent LGVV
Kai Huang, Yonggen Xu, Yuqiang Li
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Radial phased-locked Laguerre-Gaussian correlated schell-model beam array
Heliyon, 2022 A new beam array called radial phased-locked Laguerre-Gaussian correlated Schell-model (LGCSM) beam array is presented, the beamlet of this beam array is partially coherent beam with Laguerre Gaussian-Schell model correlation.
Yaotian Yan +5 more
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Journal of Manufacturing and Materials Processing, 2023 The commonly used Gaussian intensity distribution during the laser-based processing of metals can negatively affect melt pool stability, which might lead to defects such as porosity, hot cracking, or poor surface quality.
Florian Nahr +3 more
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Super-Gaussian conical refraction beam [PDF]
, 2014 We demonstrate the transformation of Gaussian input beams into super-Gaussian beams with a quasi flat-top transverse profile by means of the conical refraction phenomenon by adjusting the ratio between the ring radius and the waist radius of the input ...
Loiko, Yu.V. +6 more
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Photonics, 2023 We investigate the interactions of in-phase Airy beams modulated by a fundamental Gaussian beam and fourth-order diffraction in Kerr nonlinear media. Directly numerical simulations show that normal (anomalous) fourth-order diffraction and an in-phase ...
Wenwen Zhao, Lijuan Ge, Ming Shen
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