Graphene Transverse Electric Surface Plasmon Detection using Nonreciprocity Modal Discrimination
Nima Chamanara, Christophe Caloz
TL;DR
This paper introduces a magnetically biased graphene-ferrite structure that discriminates TE and TM plasmonic modes, highlighting the nonreciprocal TE mode propagation and enabling experimental observation of TE plasmons in graphene.
Contribution
It presents a novel structure that utilizes nonreciprocity to distinguish TE and TM graphene plasmons, facilitating experimental detection of TE modes.
Findings
TE plasmons exhibit nonreciprocity and unidirectional propagation
The structure enables experimental demonstration of TE plasmons in graphene
TM plasmons interact reciprocally with the structure
Abstract
We present a magnetically biased graphene-ferrite structure discriminating the TE and TM plasmonic modes of graphene. In this structure, the graphene TM plasmons interact reciprocally with the structure. In contrast, the graphene TE plasmons exhibit nonreciprocity. This nonreciprocity is manifested in unidirectional TE propagation in a frequency band close to the interband threshold frequency. The proposed structure provides a unique platform for the experimental demonstration of the unusual existence of the TE plasmonic mode in graphene.
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