Results 41 to 50 of about 7,439 (300)
We model the effect of the off-axis distance of edge dislocation on the transmission of mixed higher order optical vortex–edge dislocations in atmospheric turbulence.
Penghui Gao +4 more
doaj +1 more source
Metamaterials for light rays: ray optics without wave-optical analog in the ray-optics limit [PDF]
Volumes of sub-wavelength electromagnetic elements can act like homogeneous materials: metamaterials. In analogy, sheets of optical elements such as prisms can act ray-optically like homogeneous sheet materials.
Hamilton, A.C., Courtial, J.
core +1 more source
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
doaj +1 more source
Optical helicity, chirality, and spin of 3D-structured Laguerre-Gaussian optical vortices [PDF]
Optical fields possess energy, momentum, and helicity. For the plane waves and paraxial fields of standard, classical optics, the spin angular momentum and optical helicity are well understood, both being proportional to the degree of circular ...
Forbes, Kayn +3 more
core +1 more source
All-fiber SWAP-CNOT gate for optical vortices
We study the propagation of optical vortices in a system which consists of a tandem of a multi-helical and twisted anisotropic fiber. We show that at certain resonance regimes of the optical fibers such a system allows one to control sign flipping of the
E.V. Barshak +5 more
doaj +1 more source
Orbital angular momentum: origins, behavior and applications [PDF]
As they travel through space, some light beams rotate. Such light beams have angular momentum. There are two particularly important ways in which a light beam can rotate: if every polarization vector rotates, the light has spin; if the phase structure ...
Padgett, M.J. +5 more
core +1 more source
Generation of optical vortices imitating water vortices
In optics, we can generate vortex beams using specific methods such as spiral phase plates or computer generated holograms. While, in nature, it is worth noting that water can produce vortices by a circularly symmetrical hole. So, if a light beam can generate vortex when it is diffracted by an aperture? Here, we show that the light field in the Fresnel
Yao, Jun +6 more
openaire +2 more sources
Quadrupole absorption rate for atoms in circularly-polarized optical vortices
Twisted light beams, or optical vortices, have been used to drive the circular motion of microscopic particles in optical tweezers and have been shown to generate vortices in quantum gases.
Smail Bougouffa
doaj +1 more source
Optical vortices and vortex solitons [PDF]
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 +2 more
openaire +2 more sources
Vorticity and the birth of optical vortices
We exploit the vorticity, familiar from fluid mechanics and the theory of superfluids, as a tool to track the birth and subsequent development of optical vortices at a spiral phase plate.
Potoček, Václav +2 more
openaire +2 more sources

