A review of multiple optical vortices generation: methods and applications
Sign Up to like & getrecommendations! Published in 2019 at "Frontiers of Optoelectronics"
DOI: 10.1007/s12200-019-0910-9
Abstract: Optical vortices carrying orbital angular momentum (OAM) have attracted increasing interest in recent years. Optical vortices have seen a variety of emerging applications in optical manipulation, optical trapping, optical tweezers, optical vortex knots, imaging, microscopy,… read more here.
Keywords: optical vortices; vortices generation; applications review; multiple optical ... See more keywords
Elliptic perfect optical vortices
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2017.10.144
Abstract: We generalize the concept of perfect optical vortices, studying the elliptic perfect optical vortices (EPOVs), which also have diameters independent on the topological charge. A pure-phase diffractive optical element is proposed for efficient generation of… read more here.
Keywords: elliptic perfect; oam; perfect optical; optical vortices ... See more keywords
Stable explicit vector optical vortices under inhomogeneous nonlinearities
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2020.164355
Abstract: Abstract The coupled nonlinear Schrodinger system with spatially modulated nonlinearities is discussed by the variable separation and ansatz methods. Two families of explicit vector vortices with arbitrary vorticity are generated. Some basic properties of the… read more here.
Keywords: vector; vector optical; stable explicit; optical vortices ... See more keywords
Description of a multifocal arrangement of asymmetric Kummer-beam optical vortices
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2020.106098
Abstract: In this work, an analytic expression is derived for the optical field generated by an off-axis Gaussian beam diffracted by a Discrete Vortex-Producing Lens (DVPL). With this system, a multifocal arrangement of asymmetric optical vortices… read more here.
Keywords: phase; arrangement asymmetric; optical vortices; multifocal arrangement ... See more keywords
Ring-broken optical vortices with an adjustable opening
Sign Up to like & getrecommendations! Published in 2019 at "Results in physics"
DOI: 10.1016/j.rinp.2019.102689
Abstract: Abstract A modified helical phase is presented in this paper. The generated vortex beams with the modified helical phases are characterized with ring-broken intensity distributions. The transverse intensity patterns of the generated vortex beams at… read more here.
Keywords: adjustable opening; ring broken; optical vortices; vortex beams ... See more keywords
Attosecond twisted beams from high-order harmonic generation driven by optical vortices
Sign Up to like & getrecommendations! Published in 2017 at "High Power Laser Science and Engineering"
DOI: 10.1017/hpl.2017.1
Abstract: Optical vortices are structures of the electromagnetic field with a spiral phase ramp about a point-phase singularity, carrying orbital angular momentum (OAM). Recently, OAM has been imprinted to short-wavelength radiation through high-order harmonic generation (HHG),… read more here.
Keywords: harmonic generation; attosecond twisted; order harmonic; high order ... See more keywords
Volumetric Generation of Optical Vortices with Metasurfaces
Sign Up to like & getrecommendations! Published in 2017 at "ACS Photonics"
DOI: 10.1021/acsphotonics.6b00808
Abstract: Recent advances in metasurfaces, i.e., two-dimensional arrays of engineered nanoscale inclusions that are assembled onto a surface, have revolutionized the way to control electromagnetic waves with ultrathin, compact components. The generation of optical vortex beams,… read more here.
Keywords: vortices metasurfaces; volumetric generation; generation; optical vortices ... See more keywords
Structured optical vortices with broadband comb-like optical spectra in Yb:Y3Al5O12/YVO4 Raman microchip laser
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5024051
Abstract: Structured optical vortices with 4 phase singularities have been generated in a laser diode pumped continuous-wave Yb:Y3Al5O12/YVO4 (Yb:YAG/YVO4) Raman microchip laser. The broadband comb-like first order Stokes laser emitting spectrum including 30 longitudinal modes covers… read more here.
Keywords: yvo4; laser; structured optical; optical vortices ... See more keywords
Formation of Optical Vortices by Controllable Holographic Diffraction Structures in Liquid Crystal – Photopolymer Compositions
Sign Up to like & getrecommendations! Published in 2019 at "Ferroelectrics"
DOI: 10.1080/00150193.2019.1598195
Abstract: Abstract Formation of optical vortices by Gaussian light beams diffraction on holographically formed diffractive optical elements (DOE) in polymer-dispersed liquid crystals (PDLC) is theoretically described. The feature of investigated DOEs is in their special structure… read more here.
Keywords: vortices controllable; formation optical; holographic diffraction; controllable holographic ... See more keywords
Raman-induced transfer of optical vortices
Sign Up to like & getrecommendations! Published in 2022 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/ac5047
Abstract: We explore the concept that the Raman process can be used as an effective way for transfer of optical vortices. In a four-level atomic system, two strong fields are applied to form a Λ-type subsystem… read more here.
Keywords: optical vortices; transfer optical; induced transfer; probe ... See more keywords
Atom trapping and dynamics in the interaction of optical vortices with quadrupole-active transitions
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.043403
Abstract: Recent studies have confirmed the coupling of optical vortices, such as Laguerre-Gaussian and Bessel-Gaussian modes, to quadrupole-active atomic transitions. This interaction has been shown to be enhanced considerably in the case of Laguerre-Gaussian beams due… read more here.
Keywords: optical vortices; atom trapping; trapping dynamics; quadrupole active ... See more keywords