Optical vortex-induced forward mass transfer: manifestation of helical trajectory of optical vortex [PDF]
Optics Express, 2019 The orbital angular momentum of an optical vortex field is found to twist high viscosity donor material to form a micron-scale 'spin jet'. This unique phenomenon manifests the helical trajectory of the optical vortex. Going beyond both the conventional ink jet and laser induced forward mass transfer (LIFT) patterning technologies, it also offers the ...
Ryosuke Nakamura +8 more
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Optical vortex fiber laser based on modulation of transverse modes in two mode fiber [PDF]
APL Photonics, 2019 Optical vortices, characterized by helical phase fronts, are usually generated outside the laser cavity using passive modulation methods. Here, we demonstrate an all-fiber laser to directly deliver mode-locked and continuous-wave vortex beams based on ...
Dong Mao +7 more
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Orbital angular momentum transformation of optical vortex with aluminum metasurfaces. [PDF]
Sci Rep, 2019 The orbital angular momentum (OAM) transformation of optical vortex is realized upon using aluminum metasurfaces with phase distributions derived from the caustic theory.
Zhang Y, Yang X, Gao J.
europepmc +2 more sources
Publisher Correction: Ultrafast beam pattern modulation by superposition of chirped optical vortex pulses. [PDF]
Sci Rep, 2022 Honda A +5 more
europepmc +3 more sources
Mode Structure and Orbital Angular Momentum of Spatiotemporal Optical Vortex Pulses. [PDF]
Physical Review Letters, 2021 We identify a class of modal solutions for spatiotemporal optical vortex (STOV) electromagnetic pulses propagating in dispersive media with orbital angular momentum (OAM) orthogonal to propagation.
S. Hancock, S. Zahedpour, H. Milchberg
semanticscholar +1 more source
Measures of helicity and chirality of optical vortex beams [PDF]
Journal of Optics, 2021 Analytical forms of the optical helicity and optical chirality of monochromatic Laguerre–Gaussian optical vortex beams are derived up to second order in the paraxial parameter kw0 .
Kayn A. Forbes, G. Jones
semanticscholar +1 more source
Experimental demonstration of cylindrical vector spatiotemporal optical vortex [PDF]
Nanophotonics, 2021 We experimentally generate cylindrically polarized wavepackets with transverse orbital angular momentum, demonstrating the coexistence of spatiotemporal optical vortex with spatial polarization singularity.
Jian Chen, C. Wan, A. Chong, Q. Zhan
semanticscholar +1 more source
Theoretical study of vortex beam generation based on geometric coordinate transformation
Frontiers in Physics, 2022 By performing a conformal optical mapping of an input beam from Cartesian to log-polar coordinates, we propose a method to generate vortex beam. By tilting the incident beam, a phase gradient is attached and evolves into a vortex phase due to the optical
Yanke Li +5 more
doaj +1 more source
Experimental investigation in Airy transform of Gaussian beams with optical vortex
Results in Physics, 2021 The Airy transform was first introduced for a Gaussian beam, and the output beam is an Airy beam. When the Gaussian beam is extended to the Gaussian beam with optical vortex, what kind of output beam will be achieved by executing the Airy transformation.
Yi-Qing Xu +5 more
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Optical vortex lattice: an exploitation of orbital angular momentum
Nanophotonics, 2021 Generally, an optical vortex lattice (OVL) is generated via the superposition of two specific vortex beams. Thus far, OVL has been successfully employed to trap atoms via the dark cores.
Liuhao Zhu +4 more
semanticscholar +1 more source