Results 41 to 50 of about 112,176 (189)
PhotonicsThis study presents an efficient and practical intra-cavity approach for selectively generating vortex array laser beams employing a dual-phase modulation digital laser system, which has not yet been completed in single-phase modulation digital laser ...
Ly Ly Nguyen Thi +2 more
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Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems
Fibers, 2022 The article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of ...
Valery H. Bagmanov +5 more
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Polygonal micro-whirlpools induced in ferrofluids
, 2015 We report on the observation of the polygonal whirlpools in the thin layer of ferrofluid under illumination with a laser beam carrying optical vortex and in the presence of a vertical magnetic field. This kind of structures have attracted attention after
Bacia, Marcin +4 more
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Photonics, 2022 The match between the orbital angular momentum (OAM) transmission and receipt is a prerequisite for vortex beams as a carrier of the wireless optical communication system in free space.
Xu Yan, Shuang Liang, Jia Li, Lixin Guo
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Diffusion induced decoherence of stored optical vortices
, 2007 We study the coherence properties of optical vortices stored in atomic ensembles. In the presence of thermal diffusion, the topological nature of stored optical vortices is found not to guarantee slow decoherence.
Jiang, L. +3 more
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Asymmetric vortex solitons in nonlinear periodic lattices [PDF]
, 2004 We reveal the existence of asymmetric vortex solitons in ideally symmetric periodic lattices, and show how such nonlinear localized structures describing elementary circular flows can be analyzed systematically using the energy-balance relations.
Andrey A. Sukhorukov +5 more
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Experimental investigation on optical vortex tweezers for microbubble trapping
Open Physics, 2018 In this paper, we investigated the microbubble trapping using optical vortex tweezers. It is shown that the microbubble can be trapped by the vortex optical tweezers, in which the trapping light beam is of vortex beam.
Zhou Xiaoming +3 more
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Vortex-lattice melting in a one-dimensional optical lattice
, 2006 We investigate quantum fluctuations of a vortex lattice in a one-dimensional optical lattice. Our method gives full access to all the modes of the vortex lattice and we discuss in particular the Bloch bands of the Tkachenko modes.
Snoek, Michiel, Stoof, H. T. C.
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Supersonic optical tunnels for Bose-Einstein condensates
, 2007 We propose a method for the stabilisation of a stack of parallel vortex rings in a Bose-Einstein condensate. The method makes use of a hollow laser beam containing an optical vortex. Using realistic experimental parameters we demonstrate numerically that
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Integrated optical vortex microcomb
Nature PhotonicsThe explorations of physical degrees of freedom with infinite dimensionalities, such as orbital angular momentum and frequency of light, have profoundly reshaped the landscape of modern optics with representative photonic functional devices including optical vortex emitters and frequency combs.
Bo Chen +18 more
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