Recent advances in the research toward graphene-based terahertz lasers

Taiichi Otsuji, Akira Satou, Takayuki Watanabe, Stephane Albon Boubanga Tombet, Maxim Ryzhii, Alexander Dubinov, Vyacheslav V. Popov, Vladimir Mitin, Michael Shur, Victor Ryzhii

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

4 Citations (Scopus)


This paper reviews recent advances in the research and development toward the graphene-based terahertz (THz) lasers. Mass-less Dirac Fermions of electrons and holes in gapless and linear symmetric band structures in graphene enable a gain in a wide THz frequency range under optical or electrical pumping. The excitation of the surface plasmon polaritons in the population-inverted graphene dramatically enhances the THz gain. Photon-emission-assisted resonant tunneling in a double-graphene-layered nano-capacitor structure also strongly enhances the THz gain. Novel graphene-based heterostructures using these physical mechanisms for the current-injection driven THz lasing are discussed. Their superior gain-spectral properties are analyzed and the laser cavity structures for the graphene THz laser implementation are discussed.

Original languageEnglish
Title of host publicationNovel In-Plane Semiconductor Lasers XIV
EditorsPeter M. Smowton, Alexey A. Belyanin
ISBN (Electronic)9781628414721
Publication statusPublished - 2015
EventNovel In-Plane Semiconductor Lasers XIV - San Francisco, United States
Duration: 2015 Feb 92015 Feb 12

Publication series

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


OtherNovel In-Plane Semiconductor Lasers XIV
Country/TerritoryUnited States
CitySan Francisco


  • Graphene
  • current-injection
  • laser
  • plasmon-polariton
  • resonant-tunneling
  • 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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