Results 41 to 50 of about 102,639 (286)

Integral transformation solution of free-space cylindrical vector beams and prediction of modified-Bessel-Gaussian vector beams

open access: yes, 2007
A unified description of the free-space cylindrical vector beams is presented, which is an integral transformation solution to the vector Helmholtz equation and the transversality condition.
Ashkin   +20 more
core   +1 more source

Enhancing the Spin Hall Effect of Cylindrically Polarized Beams

open access: yesMicromachines
Two linked gear wheels in a micromachine can be simultaneously rotated in opposite directions by using a laser beam that has in its section areas the spin angular momentum (SAM) of the opposite sign.
Alexey A. Kovalev   +2 more
doaj   +1 more source

Focusing a second-order cylindrical vector beam with a gradient index Mikaelian lens [PDF]

open access: yesКомпьютерная оптика, 2020
In this paper, we numerically simulate the focusing of a second-order cylindrical vector beam with a gradient index Mikaelian lens. It is shown that the lens forms a region of the reverse energy flow near its output surface.
Sergey Stafeev   +2 more
doaj   +1 more source

Momentum Transfer by Laser Ablation of Irregularly Shaped Space Debris [PDF]

open access: yes, 2010
Proposals for ground-based laser remediation of space debris rely on the creation of appropriately directed ablation-driven impulses to either divert the fragment or drive it into an orbit with a perigee allowing atmospheric capture.
Libby, Stephen B.   +2 more
core   +2 more sources

Cylindrical vector beams for rapid polarization-dependent measurements in atomic systems

open access: yes, 2011
We demonstrate the use of cylindrical vector beams - beams with spatially varying polarization - for detecting and preparing the spin of a warm rubidium vapor in a spatially dependent manner.
Arimondo   +26 more
core   +1 more source

Mimicking Chiral Light-Matter Interaction

open access: yes, 2019
We demonstrate that electric-dipole scatterers can mimic chiral light-matter interaction by generating far-field circular polarization upon scattering, even though the optical chirality of the incident field as well as that of the scattered light is zero.
Banzer, Peter, Nechayev, Sergey
core   +1 more source

Twisted-light-induced optical transitions in semiconductors: Free-carrier quantum kinetics [PDF]

open access: yes, 2010
We theoretically investigate the interband transitions and quantum kinetics induced by light carrying orbital angular momentum, or twisted light, in bulk semiconductors.
Claude Cohen-Tannoudji   +6 more
core   +2 more sources

Wave-vector and polarization dependence of conical refraction

open access: yes, 2013
We experimentally address the wave-vector and polarization dependence of the internal conical refraction phenomenon by demonstrating that an input light beam of elliptical transverse profile refracts into two beams after passing along one of the optic ...
Kalkandjiev, T. K.   +4 more
core   +1 more source

Physical meaning of the radial index of Laguerre-Gauss beams [PDF]

open access: yes, 2015
The Laguerre-Gauss modes are a class of fundamental and well-studied optical fields. These stable, shape-invariant photons - exhibiting circular-cylindrical symmetry - are familiar from laser optics, micro-mechanical manipulation, quantum optics ...
Krenn, Mario, Plick, William N.
core   +3 more sources

Dynamic control of cylindrical vector beams via anisotropy

open access: yesOptics Express, 2018
We demonstrate that the spatially diffractive properties of cylindrical vector beams could be controlled via linear interactions with anisotropic crystals. It is the first time to show experimentally that the diffraction of the vector beams can be either suppressed or enhanced significantly during propagation, depending on the sign of anisotropy ...
Chaoheng, Guo   +5 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy