Results 31 to 40 of about 3,652 (291)
Manipulation of Energy Flow with X-Type Vortex
Photonics, 2022 In this study, a new method for manipulating energy flow in a 3D vector field is proposed. In this method, an azimuthally-polarized beam with a noncanonical vortex, the X-type vortex, is focused in a high-numerical aperture system.
Han Zhang +3 more
doaj +1 more source
Orbital angular momentum: origins, behavior and applications [PDF]
, 2011 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
Vector Vortex Beam Emitter Embedded in a Photonic Chip [PDF]
Physical Review Letters, 2020 20 pages, 7 ...
Yuan Chen +9 more
openaire +3 more sources
, 2014 Negative radiation forces act opposite to the direction of propagation, or net momentum, of a beam but have previously been challenging to definitively demonstrate.
Démoré, Christine E.M. +10 more
core +1 more source
Switchable phase and polarization singular beams generation using dielectric metasurfaces
Scientific Reports, 2017 Singular beams which possess helical phase wavefront or spatially inhomogeneous polarization provide new freedom for optical field manipulation. However, conventional schemes to produce the singular beams have difficulty in realizing the flexible switch ...
Yanliang He +7 more
doaj +1 more source
Integrated multi vector vortex beam generator
Optics Express, 2013 A novel method to generate and manipulate vector vortex beams in an integrated, ring resonator based geometry is proposed. We show numerically that a ring resonator, with an appropriate grating, addressed by a vertically displaced access waveguide emits a complex optical field.
Schulz, Sebastian A. +3 more
openaire +3 more sources
Hybrid generation and analysis of vector vortex beams
Applied Optics, 2017 A method is described for generating optical vector vortex beams carrying superpositions of orbital angular momentum states by using a tandem application of a spatial light modulator with a vortex retarder. The vortex component has a spatially inhomogeneous phase front that can carry orbital angular momentum, and the vector nature is a spatially ...
Sandra, Mamani +5 more
openaire +2 more sources
Extraction of Inherent Polarization Modes from an m‐Order Vector Vortex Beam
Advanced Photonics Research, 2022 Superposition of two independent orthogonally polarized beams is a conventional principle of creating a new light beam. Herein, it is intended to achieve the inverse process, namely, extracting inherent polarization modes from a single light beam ...
Xiaoyu Weng +6 more
doaj +1 more source
Results in Physics, 2021 By the theory of localized waves and the vectorial solution of the Maxwell equation, we develop and explore the vector characteristics of the new square Hermite–Gaussian vortex pulsed beam possessing orbital angular momentum (OAM).
Ye Li, Yaqin Xie, Baolong Li
doaj +1 more source
APL Photonics, 2019 Large topological charge optical vortex beams carrying orbital angular momentum have potential applications on optical trapping, optical communication with high capacity, quantum information processing.
Dimeng Chen +5 more
doaj +1 more source