Difference frequency generation of terahertz surface plasmons in graphene and topological insulators

Xianghan Yao, Mikhail Tokman, Alexey Belyanin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Massless Dirac electrons in graphene and surface states of topological insulators have peculiar optical properties and strong coupling to light. Surface plasmons in these materials may provide an attractive alternative to noble-metal plasmons due to their tighter confinement, peculiar dispersion, and longer propagation distance. We present theoretical studies of the difference frequency generation (DFG) of terahertz surface plasmon modes supported by two-dimensional layers of massless Dirac electrons, which includes monolayer graphene and surface states in topological insulators. Our results demonstrate strong enhancement of the DFG efficiency near the plasmon resonance and the feasibility of phase-matched nonlinear generation of plasmons over a broad range of frequencies.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXII
PublisherSPIE
ISBN (Print)9780819498939
DOIs
StatePublished - 2014
Externally publishedYes
EventPhysics and Simulation of Optoelectronic Devices XXII - San Francisco, CA, United States
Duration: 3 Feb 20146 Feb 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8980
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XXII
Country/TerritoryUnited States
CitySan Francisco, CA
Period3/02/146/02/14

Keywords

  • Di erence frequency generation
  • Graphene
  • Graphene/silcon waveguide
  • Terahertz plasmons
  • Topological insulator

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