Superluminal plasmons with resonant gain in population inverted bilayer graphene

Tony Low, Pai-Yen Chen, D. N. Basov

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

AB-stacked bilayer graphene with a tunable electronic band gap in excess of the optical phonon energy presents an interesting active medium, and we consider such a theoretical possibility in this Rapid Communication. We argue the possibility of a highly resonant optical gain in the vicinity of the asymmetry gap. Associated with this resonant gain are strongly amplified plasmons, plasmons with negative group velocity and superluminal effects, as well as directional leaky modes.
Original languageEnglish (US)
JournalPhysical Review B
Volume98
Issue number4
DOIs
StatePublished - Jul 13 2018
Externally publishedYes

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