Quasi-one-dimensional ballistic ring in the field of circularly polarized electromagnetic wave

TL;DR

This paper investigates the dynamics of electrons in a quasi-one-dimensional ballistic ring under circularly polarized light, revealing conditions for constant dipole moments and enhanced higher harmonics in the emitted radiation spectrum.

Contribution

It introduces a detailed analysis of electron motion and radiation in a ballistic ring under circular polarization, highlighting new effects like constant dipole moments and harmonic enhancement.

Findings

Electron average angular velocity depends on wave parameters.

Ring can maintain a constant average dipole moment.

Higher harmonics can be enhanced in the radiation spectrum.

Abstract

Dynamics is studied of an electron in a quasi-one-dimensional ballistic ring under circularly polarized electromagnetic field propagating along the normal to the ring plane. The average emission intensity from the ring is calculated. The value and direction of the electron average angular velocity in the ring depend on the incident wave parameters. It is found that the ring average dipole moment can remain constant under certain conditions. Possibility is shown of higher harmonics enhancement in the ring radiation spectrum.