Terahertz gain and amplification in current-driven metasurfaces of graphene Dirac plasmons

Stephane Albon Boubanga Tombet, D. Yadav, A. Satou, W. Knap, V. V. Popov, T. Otsuji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We explore current-driven Dirac plasmon dynamics in monolayer graphene metasurfaces. DC-current-induced complete suppression of the graphene absorption is experimentally observed in a broad frequency range followed by a giant amplification (up to ∼9 % gain) of an incoming terahertz radiation at room temperature.

Original languageEnglish
Title of host publicationTerahertz Photonics
EditorsMona Jarrahi, Sascha Preu, Dmitry Turchinovich
ISBN (Electronic)9781510634688
Publication statusPublished - 2020 Jan 1
EventTerahertz Photonics 2020 - none, France
Duration: 2020 Apr 62020 Apr 10

Publication series

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


ConferenceTerahertz Photonics 2020


  • amplification
  • Dirac plasmon
  • graphene
  • metasurface
  • Terahertz

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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