Spatiotemporal vortex beams and angular momentum

KY Bliokh, F Nori - Physical Review A—Atomic, Molecular, and Optical …, 2012‏ - APS
We present a space-time generalization of the known spatial (monochromatic) wave vortex
beams carrying intrinsic orbital angular momentum (OAM) along the propagation direction …

Generation of terahertz surface plasmon polaritons using nondiffractive Bessel beams with orbital angular momentum

BA Knyazev, YY Choporova, MS Mitkov, VS Pavelyev… - Physical review …, 2015‏ - APS
Bessel vortex beams with topological charges of l=±1 and l=±2 were produced in the
terahertz spectral range from a free electron laser Gaussian beam (λ= 141 μ m) transformed …

Coupling of spin and angular momentum of light in plasmonic vortex

SW Cho, J Park, SY Lee, H Kim, B Lee - Optics Express, 2012‏ - opg.optica.org
We present that two distinct optical properties of light, the spin angular momentum (SAM)
and the orbital angular momentum (OAM), can be coupled in the plasmonic vortex. If a …

A plasmonic spanner for metal particle manipulation

Y Zhang, W Shi, Z Shen, Z Man, C Min, J Shen, S Zhu… - Scientific reports, 2015‏ - nature.com
Typically, metal particles are difficult to manipulate with conventional optical vortex (OV)
tweezers, because of their strong absorption and scattering. However, it has been shown …

Visualizing orbital angular momentum<? A3B2 show [pmg: line-break justify=" yes"/]?> of plasmonic vortices

Z Shen, ZJ Hu, GH Yuan, CJ Min, H Fang, XC Yuan - Optics letters, 2012‏ - opg.optica.org
Plasmonic vortices (PVs) are generated by focusing a radially polarized optical vortex (OV)
beam onto a metal surface. The intensity distribution of the PV is registered with a near-field …

Map** plasmonic near-field profiles and interferences by surface-enhanced Raman scattering

L Du, DY Lei, G Yuan, H Fang, X Zhang, Q Wang… - Scientific Reports, 2013‏ - nature.com
Map** near-field profiles and dynamics of surface plasmon polaritons is crucial for
understanding their fundamental optical properties and designing miniaturized photonic …

Radially polarized plasmonic vector vortex generated by a metasurface spiral in gold film

Y Zhang, R Zhang, X Li, L Ma, C Liu, C He… - Optics express, 2017‏ - opg.optica.org
Vector vortices with spatially varying polarization are interesting phenomena and have
motivated many recent studies. A vector vortex in the wavefield of a surface plasmon …

Deterministic synthesis of optical vortices in tailored plasmonic Archimedes spiral

CD Ku, WL Huang, JS Huang… - IEEE Photonics …, 2013‏ - ieeexplore.ieee.org
We demonstrate that the shape and the orientation of a surface plasmon (SP) vortex can be
deterministically tailored through the geometrical design of a plasmonic Archimedes spiral …

Drawing structured plasmonic field with on-chip metalens

Y Wang, C Min, Y Zhang, F Feng, G Si, L Li, X Yuan - Nanophotonics, 2022‏ - degruyter.com
The ability to draw a structured surface plasmon polariton (SPP) field is an important step
toward many new opportunities for a broad range of nanophotonic applications. Previous …

Generation of optical vortices with polarization-insensitive metasurfaces

Z Shen, R Li, YZ Xue, ZY Qiu, ZY **ang… - IEEE Photonics …, 2020‏ - ieeexplore.ieee.org
Traditionally, optical vortices (OVs) were generated with diffractive optical elements (DOEs)
such as spiral phase plate (SPP), fork grating, spatial light modulator (SLM), and liquid …