Images reveal orbital angular momentum of plasmons

Scientists have produced nanometer-sized plasmon swirls on a metal surface that can perform useful work.

Watching the orbital angular momentum of plasmons on a nanoscale

Applied Sciences, Free Full-Text

File:Vector model of orbital angular momentum.svg - Wikipedia

On-chip discrimination of orbital angular momentum of light with plasmonic nanoslits - Nanoscale (RSC Publishing) DOI:10.1039/C5NR07374J

Spatio-temporal shaping of a free-electron wave function via coherent light–electron interaction

Generation of beams with orbital angular momentum. (a) The phase

Twisted' Laser Light Experiments Offer New Insights into Plasma Physics

Plasmon Orbital Angular Momentum Generation

Orbital angular momentum in optical manipulations - IOPscience

Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface

Angular-momentum conversion from surface plasmon to electron spin in a

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Emission of orbital angular momentum based on spoof localized surface plasmons

Analytical calculation of beam profile and orbital angular momentum spectrum of Laguerre Gaussian beams reflected from a graphene plasmonic structure