Results 61 to 70 of about 112,176 (189)

Stereographical visualization of a polarization state using weak measurements with an optical-vortex beam [PDF]

, 2014
We propose a stereographical-visualization scheme for a polarization state by two-dimensional imaging of a weak value with a single setup. The key idea is to employ Laguerre-Gaussian modes or an optical vortex beam for a probe state in weak measurement ...
1324, 1325, 1326, Kobayashi, Hirokazu, Nonaka, Koji, Shikano, Yutaka   +5 more
core   +2 more sources

Direction of energy flows at the focus of cylindrical vortex vector beams

Компьютерная оптика
In this work, we show analytically using the Richards-Wolf formalism and through the numerical simulation that at the sharp focus of a circularly polarized optical vortex, three energy flows occur: the direct longitudinal, reverse longitudinal, and ...
V.V. Kotlyar, A.A. Kovalev, A.G. Nalimov, A.M. Telegin   +3 more
doaj   +1 more source

Caustics of Non-Paraxial Perfect Optical Vortices Generated by Toroidal Vortex Lenses

Photonics, 2021
In this paper, we consider the comparative formation of perfect optical vortices in the non-paraxial mode using various optical elements: non-paraxial and parabolic toroidal vortex lenses, as well as a vortex axicon in combination with a parabolic lens ...
Svetlana N. Khonina, Sergey I. Kharitonov, Sergey G. Volotovskiy, Viktor A. Soifer   +3 more
doaj   +1 more source

Effect of atmospheric turbulence on propagation properties of optical vortices formed by using coherent laser beam arrays

, 2008
In this paper, we consider the effect of the atmospheric turbulence on the propagation of optical vertex formed from the radial coherent laser beam array, with the initially well-defined phase distribution.
Andrews L C, Desyatnikov A S, Li-Gang Wang, Nye J F, Soskin M S, Wei-Wei Zheng   +5 more
core   +1 more source

Optical Vortex-Pumped KTiOAsO₄ Narrow-Linewidth Picosecond-Pulsed Parametric Oscillator

Applied Sciences
Herein, we present a picosecond-pulsed optical vortex parametric oscillator capable of generating high-power, narrow-linewidth near- and mid-infrared optical vortex outputs.
Xiazhuo Jiao, Jianqiang Ye, Mailikeguli Aihemaiti, Yuxia Zhou, Sujian Niu, Xining Yang   +5 more
doaj   +1 more source

Vortex-vortex control in exciton-polariton condensates

, 2017
Vortices are widely studied in fields ranging from nonlinear optics to magnetic systems and superconductors. A vortex carries a binary information corresponding to its topological charge, `plus' or `minus', that can be used for information storage and ...
Ma, Xuekai, Schumacher, Stefan
core   +1 more source

Stability of small amplitude normal modes of a Bose-Einstein condensate with a singly quantized vortex confined in an optical lattice

, 2004
We study the dynamics of a BEC with a singly quantized vortex, placed in the combined potential of a 1-D (2-D) optical lattice and an axi-symmetric harmonic trap.
Aranya B Bhattacherjee, Bhattacherjee A, Cooper F, Cristiani M, E Arimondo, Fetter A L, Kevrekidis P G, Linn M, Martikainen J-P, O Morsch, Pataevskii L, Perez-Garcia V M   +11 more
core   +1 more source

Optical vortices and vortex solitons [PDF]

, 2005
Optical vortices are phase singularities nested in electromagnetic waves that constitute a fascinating source of phenomena in the physics of light and display deep similarities to their close relatives, quantized vortices in superfluids and Bose-Einstein condensates.
Desyatnikov, Anton S, Torner, Lluis, Kivshar, Yuri   +2 more
openaire   +2 more sources

Topological stability of optical vortices diffracted by a random phase screen [PDF]

Компьютерная оптика, 2019
Here, we theoretically demonstrate that if a Gaussian optical vortex is distorted by a random phase screen (diffuser) then the average intensity distribution in the focus of a spherical lens has a form of a ring with a nonzero value on the optical axis ...
Victor Kotlyar, Alexey Kovalev, Alexey Porfirev   +2 more
doaj   +1 more source

Polarization-Dependent Distortion of the Vortex Light Field Generated Using a Vortex Retarder

IEEE Photonics Journal
A vortex retarder (VR) is a widely-used optical component for converting Gaussian light beams into vortex beams, exhibiting unique advantages in a few broadband applications.
Jinyu Pan, Zhiyuan Huang, Tiandao Chen, Donghan Liu, Yue Yu, Xinshuo Chang, Meng Pang, Yuxin Leng   +7 more
doaj   +1 more source