Results 11 to 20 of about 8,222 (253)

Focusing a cylindrical vector beam and the Hall effect

open access: yesКомпьютерная оптика
Polarization of a higher-order cylindrical vector beam (CVB) is known to be locally linear. The higher the beam order, the larger number of full circles the local linear polarization vector makes around the optical axis.
V.V. Kotlyar   +3 more
doaj   +2 more sources

The Non-Vortex Inverse Propagation of Energy in a Tightly Focused High-Order Cylindrical Vector Beam

open access: yesIEEE Photonics Journal, 2019
In this paper, the tight focusing of high-order cylindrical vector beams (beams with polarization singularity) was investigated. Using the Richards–Wolf formalism, there were obtained expressions for all projections of the electric and magnetic ...
Sergey S. Stafeev   +3 more
doaj   +3 more sources

Singularities in cylindrical vector beams [PDF]

open access: yesJournal of Modern Optics, 2015
Cylindrical vector beams with azimuthal and radial polarization distributions are studied for singularities. It is shown experimentally that these beams have screw dislocation as well as edge dislocation at the same time. The relation between phase and polarization of light beam is the key to understand this fact.
Manish Verma   +5 more
openaire   +1 more source

High-Mode Purity 1 μm Cylindrical Vector Beam All-Fiber Laser Based on a Symmetric Two-Mode Coupler

open access: yesApplied 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

Reverse energy flow in vector modes of optical fibers

open access: yesКомпьютерная оптика, 2023
In this paper, the propagation of a second-order cylindrical vector beam in gradient-index and microstructured fibers is numerically simulated using the RSoft Fullwave software.
S.S. Stafeev   +3 more
doaj   +1 more source

On-chip generation of adjustable cylindrical vector beams

open access: yesOptics Express, 2023
Cylindrical vector (CV) beams have sparked considerable interest due to their extraordinary vectorial properties, desirable for applications ranging from microscopy to high energy physics. Increasing demand for cost-effective, small-footprint photonics has fueled the development of photonic integrated circuits (PICs) capable of generating structured ...
C. Cisowski   +4 more
openaire   +2 more sources

Light People: Professor Thomas G. Brown

open access: yesLight: Science & Applications, 2022
Prof. Thomas G. Brown from the University of Rochester introduced the term “cylindrical vector beam” to describe unique and unconventional polarization states.
Hui Wang
doaj   +1 more source

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

open access: yesIEEE Photonics Journal, 2022
A wavelength-tunable mode-locked cylindrical vector beam (CVB) fiber laser with a dumbbell-shaped structure was proposed and demonstrated experimentally.
Yuan Lu, Peijun Yao
doaj   +1 more source

Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams [PDF]

open access: yesScientific Reports, 2018
Abstract Magnetic oscillation is a generic property of electronic conductors under magnetic fields and widely appreciated as a useful probe of their electronic band structure, i.e. the Fermi surface geometry. However, the usage of the strong static magnetic field makes the measurement insensitive to the magnetic order of the target ...
Hiroyuki Fujita, Masahiro Sato
openaire   +4 more sources

An interference scheme for generating inhomogeneously polarized laser radiation using a spatial light modulator [PDF]

open access: yesКомпьютерная оптика, 2020
An optical system for converting linearly polarized laser beams into cylindrical vector beams is developed and experimentally investigated. The scheme is based on the coherent addition of mode beams using a Mach-Zehnder interferometer. The simplicity and
Sergei Karpeev   +2 more
doaj   +1 more source

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