Cherenkov like mechanism of surface wave excitation

TL;DR

This paper presents a theory explaining how surface waves can be excited by fast-moving charged particles in thin metal films, revealing a Cherenkov-like effect at much lower particle velocities than in bulk media.

Contribution

It introduces a novel theoretical framework for surface wave excitation by charged particles, highlighting a Cherenkov-like mechanism in thin metal films.

Findings

Surface wave excitation can occur at significantly lower particle velocities.

A Cherenkov-like effect is predicted for surface waves in thin metal films.

The theory extends understanding of particle-induced surface wave phenomena.

Abstract

The theory is presented of surface wave excitation by a fast moving charged particle in a thin uniform metal film surrounded by a dielectric medium. It is shown that the Vavilov-Cherenkov like effect for the sufface waves could arise for particles whose velocities are ten- and even hundred-times lower than the corresponding velocities in a uniform medium.