Results 21 to 30 of about 25,544 (259)
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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Vortex solitons in moiré optical lattices
Optics Letters, 2023 We show that optical moiré lattices enable the existence of vortex solitons of different types in self-focusing Kerr media. We address the properties of such states both in lattices having commensurate and incommensurate geometries (i.e., constructed with Pythagorean and non-Pythagorean twist angles, respectively), in the different regimes that occur ...
Sergey K. Ivanov +3 more
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Theory of Optical Trapping by an Optical Vortex Beam [PDF]
Physical Review Letters, 2010 We propose a theory to explain optical trapping by optical vortices (OVs), which are emerging as important tools to trap mesoscopic particles. The common perception is that the trapping is solely due to the gradient force and that it may be characterized by three real force constants.
Ng, Jack, Lin, Zhifang, Chan, Che Ting
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Effect of Twisting Phases on the Polarization Dynamics of a Vector Optical Field
Photonics, 2022 The effect of twisting phases on the polarization dynamics of a vector vortex beam with a spatially variant state of polarization (SoP) is investigated theoretically and experimentally.
Quanbin Liu +6 more
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Optical Rogue Waves in Vortex Turbulence [PDF]
Physical Review Letters, 2016 5 pages, 7 ...
Gibson, Christopher J. +2 more
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Quantum Fluctuations of a Vortex in an Optical Lattice [PDF]
Physical Review Letters, 2003 Using a variational ansatz for the wave function of the Bose-Einstein condensate, we develop a quantum theory of vortices and quadrupole modes in a one-dimensional optical lattice. We study the coupling between the quadrupole modes and Kelvin modes, which turns out to be formally analogous to the theory of parametric processes in quantum optics.
Martikainen, J.-P., Stoof, H.T.C.
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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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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
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International Journal of Optics, 2012 Interference of optical beams with optical vortices is often encountered in singular optics. Since interferometry makes the phase observable by intensity measurement, it brings out a host of applications and helps to understand the optical vortex.
P. Senthilkumaran +2 more
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Modulation of orbital angular momentum of vortex beam based on ordered pinhole screens
Results in Physics, 2023 Optical vortex phase beams have unique amplitudes and phase distributions, rendering them sensitive to the position and symmetry of modulating structures. This sensitivity can facilitate their applicability to optical communications.
Jinlong Zhang +6 more
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