Graphene plasmonic heterostructures for new types of terahertz lasers

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

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


This paper reviews recent advances in graphene plasmonic heterostructures for new types of terahertz lasers. We theoretically discovered and experimentally manifested that the excitation of surface plasmons in population-inverted graphene by the terahertz photons results in propagating surface plasmon polaritons with a giant gain in a wide terahertz range. Furthermore, double graphene layer heterostructures consisting of a tunnel barrier insulator sandwiched with a pair of gated graphene monolayers are introduced. Photoemission-assisted quantum-mechanical resonant tunneling can be electrically tuned to meet a desired photon energy for lasing, resulting in enormous enhancement of the terahertz gain. Current injection structures are also addressed.

Original languageEnglish
Title of host publicationTerahertz Emitters, Receivers, and Applications V
EditorsAlexei N. Baranov, John M. Zavada, Dimitris Pavlidis, Manijeh Razeghi
ISBN (Electronic)9781628412260
Publication statusPublished - 2014
EventTerahertz Emitters, Receivers, and Applications V - San Diego, United States
Duration: 2014 Aug 172014 Aug 18

Publication series

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


ConferenceTerahertz Emitters, Receivers, and Applications V
Country/TerritoryUnited States
CitySan Diego


  • Graphene
  • Heterostructure
  • Laser
  • Photon-assisted resonant tunneling
  • Plasmon
  • Surface plasmon polariton
  • Terahertz


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