Title

Plasmonic Hybridization in the Presence of Topological Insulators

Published In

Journal of the Optical Society of America B

Document Type

Citation

Publication Date

2022

Subjects

Plasmonic hybridization

Abstract

The hybridization model for the coupled plasmons of a metallic nanoshell is generalized to the case with the presence of topological insulator materials via the application of axion electrodynamics. A new approach has to be adopted in the Lagrangian formulation of the coupling dynamics between the surface and cavity plasmons to account for the axion-induced charges on the boundary surfaces. It is found that, as observed previously from numerical studies in the literature, the hybridization model predicts that a topological magneto-electric effect will lead to red shifts on both the coupled bonding and anti-bonding modes–more significant for the higher-order bonding modes with the increase of the axion coupling parameter.

Rights

© 2022 Optica Publishing Group

DOI

10.1364/JOSAB.445831

Persistent Identifier

https://archives.pdx.edu/ds/psu/36947

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