Results 31 to 40 of about 7,439 (300)
Quantum cores of optical phase singularities [PDF]
, 2004 The nodal line singularities (optical vortices) of classical scalar optics are smoothed in quantum optics, because of spontaneous emission into unoccupied modes. The radius of the 'quantum core' surrounding each classical singularity is proportional to ??
Dennis, MR +5 more
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Optical vortices enabled by structural vortices
, 2023 The structural symmetry of solids plays an important role in defining their linear and nonlinear optical properties. The quest for versatile, cost-effective, large-scale, and defect-free approaches and materials platforms for tailoring structural and optical properties on demand has been underway for decades.
Liu, Yuanfeng +9 more
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The curious arithmetic of optical vortices [PDF]
Optics Letters, 2000 The superposition of noncoaxial light beams containing screw wave-front dislocations is shown to create light patterns with a richer vortex content than that given by the arithmetic of the topological charges of the individual beams. We report the experimental observation of this phenomenon.
Molina Terriza, Gabriel +2 more
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Symmetry and Quantum Features in Optical Vortices [PDF]
Symmetry, 2021 Optical vortices are beams of laser light with screw symmetry in their wavefront. With a corresponding azimuthal dependence in optical phase, they convey orbital angular momentum, and their methods of production and applications have become one of the most rapidly accelerating areas in optical physics and technology.
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, 2005 Optical vortices generically arise when optical beams are combined. Recently, we reported how several laser beams containing optical vortices could be combined to form optical vortex loops, links and knots embedded in a light beam (Leach et al 2004 ...
Dennis, MR +13 more
core +1 more source
Geometric Progression of Optical Vortices
Photonics, 2022 We study coaxial superpositions of Gaussian optical vortices described by a geometric progression. The topological charge (TC) is obtained for all variants of such superpositions. The TC can be either integer or half-integer in the initial plane. However,
Victor Kotlyar +4 more
doaj +1 more source
Propagable Optical Vortices with Natural Noninteger Orbital Angular Momentum in Free Space
Advanced Photonics Research, 2023 Light beams with optical vortices can propagate in free space only with integer orbital angular momentum. Herein, this scientific consensus theoretically and experimentally is upheaved by proposing light beams carrying natural noninteger orbital angular ...
Xiaoyu Weng +7 more
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Orbital angular momentum and topological charge of a Gaussian beam with multiple optical vortices [PDF]
Компьютерная оптика, 2020 Here we study theoretically and numerically a Gaussian beam with multiple optical vortices with unitary topological charge (TC) of the same sign, located uniformly on a circle.
Alexey Andreevich Kovalev +2 more
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Optical spatiotemporal vortices
eLight, 2023 AbstractSpatiotemporal vortices of light, featuring transverse orbital angular momentum (OAM) and energy circulation in the spatiotemporal domain, have received increasing attention recently. The experimental realization of the controllable generation of spatiotemporal vortices triggers a series of research in this field. This review article covers the
Chenhao Wan, Andy Chong, Qiwen Zhan
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Optical vortices with starlight [PDF]
, 2008 Aims. In this paper we present our first observations at the Asiago 122 cm telescope of l = 1 optical vortices generated with starlight beams.Methods. We used a fork-hologram blazed at the first diffraction order as a phase modifying device. The multiple
Tamburini F. +4 more
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