Absence of unidirectionally propagating surface plasmon-polaritons at nonreciprocal metal-dielectric interfaces

The local Drude model predicts that, under certain conditions, surface plasmon polaritons at a metal-dielectric surface have a frequency range where only unidirectional propagation is supported. Here, the authors show that in more realistic non-local models surface plasmon polaritons exhibit bidirec...

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Bibliographic Details
Main Authors: Siddharth Buddhiraju, Yu Shi, Alex Song, Casey Wojcik, Momchil Minkov, Ian A. D. Williamson, Avik Dutt, Shanhui Fan
Format: Article
Language:English
Published: Nature Portfolio 2020-02-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-14504-9
Description
Summary:The local Drude model predicts that, under certain conditions, surface plasmon polaritons at a metal-dielectric surface have a frequency range where only unidirectional propagation is supported. Here, the authors show that in more realistic non-local models surface plasmon polaritons exhibit bidirectional propagation for all frequencies.
ISSN:2041-1723