Results 61 to 70 of about 3,312 (180)
Enhancing the Spin Hall Effect of Cylindrically Polarized Beams
MicromachinesTwo 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
High-Mode Purity 1 μm Cylindrical Vector Beam All-Fiber Laser Based on a Symmetric Two-Mode Coupler
Applied Sciences, 2023 Cylindrical vector beams (CVBs) are the product of polarization modulation of optical fields, and possess both unique focusing characteristics and excellent properties applicable to machining, imaging, communication and other fields.
Boyi Yang +10 more
doaj +1 more source
An all-fiber laser generating cylindrical vector beam
Optics Express, 2010 We proposed and demonstrated an all-fiber laser to generate cylindrical vector beam. A pair of fiber-based collimators was used to select the cylindrical vector beam operating. The radially and azimuthally polarized modes can be switchable just by applying pressure to a section of fiber in our fiber laser system. A 70 cm long Yb-doped fiber was used as
Rui, Zheng +4 more
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Laser–Material Interactions of High-Quality Ultrashort Pulsed Vector Vortex Beams
Micromachines, 2021 Diffractive multi-beams based on 1 × 5 and 2 × 2 binary Dammann gratings applied to a spatial light modulator (SLM) combined with a nanostructured S-wave plate have been used to generate uniform multiple cylindrical vector beams with radial and azimuthal
Yue Tang +6 more
doaj +1 more source
Cylindrical vector beam focusing through a dielectric interface
Optics Express, 2001 Cylindrical vector beams have been proposed and demonstrated for applications ranging from microscopy to high energy physics.In this paper,we analyze the three-dimensional field distributions of radial and azimuthal beams focused near a dielectric interface.We give particular attention to the classic problem of high numerical aperture focusing from an ...
D, Biss, T, Brown
openaire +2 more sources
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
Cylindrical vector beams reveal radiationless anapole condition in a resonant state
Opto-Electronic Advances, 2022 Nonscattering optical anapole condition is corresponding to the excitation of radiationless field distributions in open resonators, which offers new degrees of freedom for tailoring light-matter interaction.
Yudong Lu +6 more
doaj +1 more source
Resonant harmonic generation in AlGaAs nanoantennas using cylindrical vector beams
, 2018 We use second- and third-harmonic generation with cylindrical vector beams to investigate AlGaAs nanodisks. The nonlinear emission is found to depend strongly on the interplay between tensorial nonlinearities, focal-field symmetries and resonant ...
Lamprianidis, Aristeides +22 more
core +1 more source
Detection and demultiplexing of cylindrical vector beams enabled by rotational Doppler effect
, 2021 Cylindrical vector beams (CVBs) detection is of vital significance in kinds of studies such as particle observation, mode-division multiplexing. Here we realize a comprehensive detection of cylindrical vector beams based on the rotational Doppler effect ...
Xiaoru Zhang (848014) +5 more
core +1 more source
, 2022 Phase conjugation with stimulated Brillouin scattering can be used to correct wavefront aberrations in high-power laser systems. Here, we consider such process with cylindrical vector lasers beams. By using a vectorial approach and a modal decomposition,
Jean-François Bisson (835044)
core +2 more sources