Results 21 to 30 of about 113,143 (287)
Photonics, 2022 Using the two-dimensional nonlinear Schrödinger equation, the collapse dynamics of vortex beams in a Kerr medium with refractive index modulation and parity–time (PT) symmetric lattices are explored. The critical power for the collapse of vortex beams in
Gang Yao, Yuhua Li, Rui-Pin Chen
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Observation of Vortex Pinning in Bose-Einstein Condensates [PDF]
, 2006 We report the observation of vortex pinning in rotating gaseous Bose-Einstein condensates (BEC). The vortices are pinned to columnar pinning sites created by a co-rotating optical lattice superimposed on the rotating BEC.
Daniel E. Sheehy +4 more
core +4 more sources
Vortex Beam in a Turbulent Kerr Medium for Atmospheric Communication
Photonics, 2023 The dynamics of the topological charge of a vortex optical beam propagating in turbulent air while accounting for the cubic nonlinearity is theoretically considered.
Andrey D. Bulygin +2 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
core +5 more sources
Optics Express, 2010 Laser ablation of Ta plates using nanosecond optical vortex pulses was carried out, for the first time. It was suggested that owing to orbital angular momentum of optical vortex, clearer and smoother processed surfaces were obtained with less ablation threshold fluence, in comparison with the ablation by a nonvortex annular beam modified from a ...
Hamazaki, Junichi +5 more
openaire +3 more sources
Advances on Solid-State Vortex Laser
Photonics, 2022 Vortex beams (VBs) are structured beams with helical wavefronts carrying orbital angular momentum (OAM) and they have been widely used in lots of domains, such as optical data-transmission, optical tweezer, quantum entanglement, and super-resolution ...
Zhichao Zhang +3 more
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Pinning and collective modes of a vortex lattice in a Bose-Einstein condensate
, 2005 We consider the ground state of vortices in a rotating Bose-Einstein condensate that is loaded in a corotating two-dimensional optical lattice. Due to the competition between vortex interactions and their potential energy, the vortices arrange themselves
A. A. Abrikosov +14 more
core +6 more sources
Spin-orbit interaction of light induced by transverse spin angular momentum engineering [PDF]
, 2017 We report the first demonstration of a direct interaction between the extraordinary transverse spin angular momentum in evanescent waves and the intrinsic orbital angular momentum in optical vortex beams.
Chen, Yujie +4 more
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, 2020 The analytical solution for the propagation of the laser beam with optical vortex through the system of lenses is presented. The optical vortex is introduced into the laser beam (described as Gaussian beam) by spiral phase plate.
Augustyniak, Ireneusz +4 more
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Review on vortex beams with low spatial coherence
Advances in Physics: X, 2019 Vortex beams with helical phase, carrying phase singularity and orbital angular momentum, have attract great attention in the past decades due to their wide applications in optical communications, optical manipulation, super-resolution imaging and so on.
Xianlong Liu, Jun Zeng, Yangjian Cai
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