Results 11 to 20 of about 358,541 (195)
Entangled Bessel-Gaussian beams [PDF]
Optics Express, 2012 Orbital angular momentum (OAM) entanglement is investigated in the Bessel-Gaussian (BG) basis. Having a readily adjustable radial scale, BG modes provide an alternative basis for OAM entanglement over Laguerre-Gaussian modes. We show that the OAM bandwidth in terms of BG modes can be increased by selection of particular radial wavevectors and leads to ...
McLaren, M. +6 more
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Results in Physics, 2019 By analyzing the construction features of a Lommel Gaussian-Schell beam and the beam wander for Gaussian beams, we derive the closed-from approximations expression for the wander of Lommel Gaussian-Schell beam through unstable stratification and weak ...
Qiyong Liang, Yun Zhu, Yixin Zhang
doaj +1 more source
Propagation of Gaussian beams in the presence of gain and loss [PDF]
, 2016 We consider the propagation of Gaussian beams in a waveguide with gain and loss in the paraxial approximation governed by the Schr\"odinger equation. We derive equations of motion for the beam in the semiclassical limit that are valid when the waveguide ...
Graefe, Eva-Maria +2 more
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Generation of Perfect Vortex Beams with Complete Control over the Ring Radius and Ring Width
Photonics, 2023 We have experimentally created perfect vortex beams (PVBs) by Fourier transformation of Bessel–Gaussian vortex beams, which are generated by modulating the fundamental Gaussian beam with the spiral phase plates and the axicons, respectively. Although the
Xin Tao +5 more
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Young's double slit interference pattern from a twisted beam [PDF]
, 2014 The interference pattern of a Laguerre Gaussian beam in a double slit experiment is reported. Whereas a typical laser beam phase front is planar, a Laguerre Gaussian beam exhibits a wave front that is twisting along the direction of propagation.
Emile, Janine, Emile, Olivier
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Sinusoidal Gaussian optical vortex as a superposition of two hypergeometric beams
Компьютерная оптика, 2022 We analyze the propagation of hypergeometric beams with a parabolic initial wavefront in a homogeneous medium. While hypergeomentric beams have a central amplitude singularity in the initial plane and are of infinite energy, superposition of two such ...
V.V. Kotlyar, A.A. Kovalev
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Beam shaping using Gaussian beam modes [PDF]
Journal of the Optical Society of America A, 2010 A beam shaping method is presented where a diffractive optical element (DOE) is designed by optimizing the complex mode coefficient weights of a set of Gaussian beam modes. This method is compared with the more standard unidirectional approach. Differential evolution is used for the optimization in both the unidirectional and Gaussian beam mode ...
Lavelle, John, O'Sullivan, Créidhe
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Applied Sciences, 2020 The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric
Bing Guan +3 more
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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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Superpositions of the Orbital Angular Momentum for Applications in Quantum Experiments [PDF]
, 2001 Two different experimental techniques for preparation and analyzing superpositions of the Gaussian and Laguerre-Gassian modes are presented. This is done exploiting an interferometric method on the one hand and using computer generated holograms on the ...
Alipasha Vaziri +6 more
core +3 more sources