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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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Laser Beam Positioning by Using a Broken-Down Optical Vortex Marker
Applied Sciences, 2021 We propose the use of high-order optical vortices as markers in the positioning of a laser beam. The broken optical vortices are arranged in constellations.
Ewa Frączek +2 more
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Optical vortices in antiguides [PDF]
Optics Letters, 2013 We address the question of whether an optical vortex can be trapped in a dielectric structure with a core of a lower refractive index than the cladding--namely an antiguide. Extensive numerical simulations seem to indicate that this inverse trapping of a vortex is not possible, at least in straightforward implementations.
Marrucci, Lab, Smyth, NFc, Assanto, Gd
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Evolutions of optical vortices under wide Gaussian background
Results in Physics, 2021 Analytically discussed is the evolution properties of optical vortices superimposed by Gaussian backgrounds. A kind of Tornado-like pattern is obtained after linear propagations, when the Gaussian background is wide enough compared with optical vortices.
Guo Liang +6 more
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2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006 We theoretically and experimentally investigate the self-focusing of optical vortices in Kerr media. We observe collapse to a distinct self-similar profile, which becomes unstable to azimuthal perturbations. We analyze the azimuthal modulational instability for ring-shaped vortices and predict the number of azimuthal maxima solely as a function of ...
Luat T, Vuong +6 more
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Dividing the Topological Charge of a Laguerre–Gaussian Beam by 2 Using an Off-Axis Gaussian Beam
Micromachines, 2022 In optical computing machines, many parameters of light beams can be used as data carriers. If the data are carried by optical vortices, the information can be encoded by the vortex topological charge (TC).
Alexey A. Kovalev +3 more
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Longitudinal component of the Poynting vector of a tightly focused optical vortex with circular polarization [PDF]
Компьютерная оптика, 2018 We numerically investigated the focusing of optical vortices with the wavelength λ = 532 nm and right-hand circular polarization by using a diffractive lens with the numerical aperture NA = 0.95.
Sergey Stafeev, Anton Nalimov
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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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, 2004 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 ...
Courtial, J. +3 more
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Optical Surface Vortices and Their Use in Nanoscale Manipulation [PDF]
, 2009 Following a brief overview of the physics underlying the interaction of twisted light with atoms at near-resonance frequencies, the essential ingredients of the interaction of atoms with surface optical vortices are described.
Andrews, D. L. +2 more
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