Plasmons in a Square of Two-Dimensional Electrons
Mesoscale and Nanoscale Physics
2023-02-22 v1 Optics
Abstract
Microwave absorption spectra of a single square of two-dimensional electrons (2DES) have been investigated using an optical detection technique. Fundamental dipole and harmonic quadrupole plasmon modes have been identified and compared to those in the disk geometry. In the square-shaped 2DES, a strong interaction is discovered between the neighboring plasmon modes, whereas no such hybridization is observed in the disk-shaped geometry. We establish a rigid theoretical platform to analytically describe the magneto-optical response of confined two-dimensional systems. The developed theory provides a proper description of the obtained experimental results.
Cite
@article{arxiv.2212.10298,
title = {Plasmons in a Square of Two-Dimensional Electrons},
author = {A. M. Zarezin and D. Mylnikov and A. S. Petrov and D. Svintsov and P. A. Gusikhin and I. V. Kukushkin and V. M. Muravev},
journal= {arXiv preprint arXiv:2212.10298},
year = {2023}
}