Superluminal plasmons with resonant gain in population inverted bilayer graphene

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

Research output: Contribution to journalArticlepeer-review

12 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)
Article number041403
JournalPhysical Review B
Volume98
Issue number4
DOIs
StatePublished - Jul 13 2018

Bibliographical note

Funding Information:
T.L. acknowledges support from NSF through the University of Minnesota MRSEC under Award No. DMR-1420013. D.N.B. acknowledges support as a Moore Foundation Investigator, EPiQS Initiative GBMF4533. T.L. and D.N.B. acknowledge support from the National Science Foundation under Grant No. NSF/EFRI-1741660. P.Y.C. acknowledges support from the National Science Foundation under Grant No. NSF/ ECCS-1711409 and KAUST Competitive Research Grant Program under Grant No. CRG-2953.

Funding Information:
Acknowledgments. T.L. acknowledges support from NSF through the University of Minnesota MRSEC under Award No. DMR-1420013. D.N.B. acknowledges support as a Moore Foundation Investigator, EPiQS Initiative GBMF4533. T.L. and D.N.B. acknowledge support from the National Science Foundation under Grant No. NSF/EFRI-1741660. P.Y.C. acknowledges support from the National Science Foundation under Grant No. NSF/ ECCS-1711409 and KAUST Competitive Research Grant Program under Grant No. CRG-2953.

How much support was provided by MRSEC?

  • Partial

Reporting period for MRSEC

  • Period 5

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