Results 31 to 40 of about 1,828,977 (180)
Optical trapping with a perfect vortex beam [PDF]
, 2014 The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko +9 more
core +1 more source
, 2005 Optical vortices generically arise when optical beams are combined. Recently, we reported how several laser beams containing optical vortices could be combined to form optical vortex loops, links and knots embedded in a light beam (Leach et al 2004 ...
Dennis, MR +13 more
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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
Probing the modal characteristics of novel beam shapes [PDF]
, 2013 In this thesis, an investigation into the modal characteristics of novel beam shapes is presented. Sculpting the phase profile of a Gaussian beam can result in the generation of a beam with unique properties.
Mourka, Areti
core +2 more sources
Direct Generation of Radially Polarized Vector Vortex Beam with an Exciton-Polariton Laser [PDF]
, 2020 Vector vortex beams are a class of optical beams with singularities in their space-variant polarization. Vector vortex beam lasers have applications in many areas including imaging and communication, where vertical-cavity lasers emitting Gaussian beams ...
Christian Schneider (445807) +4 more
core +2 more sources
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
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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
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