Numerical simulation of terahertz plasmons in gated graphene structures

A. Satou, V. Ryzhii, F. T. Vasko, V. V. Mitin, T. Otsuji

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

3 Citations (Scopus)

Abstract

Frequency dispersion and damping mechanisms of two-dimensional plasmons in graphene are studied by the numerical simulation based on the Boltzmann equation. The fundamental plasmon mode in a single-grating-gate structure is studied, and the gate-voltage tunability of its frequency as well as the coupling effect of plasmons in the gated and ungated regions are revealed. It is demonstrated that damping rates due to the acoustic-phonon scattering at room temperature and due to the short- and finite-range disorder scattering can be on the order of 1011 s-1, depending on the level of disorders. In addition, the damping due to the source and drain contacts is reported and its mechanism is discussed.

Original languageEnglish
Title of host publicationTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
DOIs
Publication statusPublished - 2013
Event2013 Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI Conference - San Francisco, CA, United States
Duration: 2013 Feb 52013 Feb 7

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8624
ISSN (Print)0277-786X

Conference

Conference2013 Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI Conference
Country/TerritoryUnited States
CitySan Francisco, CA
Period13/2/513/2/7

Keywords

  • graphene
  • grating gates
  • plasmon
  • terahertz
  • weighted-essentially- nonoscillatory scheme

Fingerprint

Dive into the research topics of 'Numerical simulation of terahertz plasmons in gated graphene structures'. Together they form a unique fingerprint.

Cite this