Surface Plasmon Resonance in the Presence of Topological Insulators

Published In

Optik

Document Type

Citation

Publication Date

2-2022

Abstract

The plasmonic resonance of the free electrons at a metal-topological insulator interface is studied with the application of axion electrodynamics. The additional red-shift due to the axion field previously observed in the literature is accounted for by a mechanical model similar to that used in the hybridization model for coupled plasmonic resonances in metallic nanoshells. Such model sheds light on the origin of the red-shift being caused by the decrease in interaction potential energy for the free electron fluid due to the axion-induced charges at the interface of the metal and the topological insulator.

Rights

© 2021 Published by Elsevier GmbH.

DOI

10.1016/j.ijleo.2021.168424

Persistent Identifier

https://archives.pdx.edu/ds/psu/36796

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