Graphene-based 2D-heterostructures for terahertz lasers and amplifiers

D. Yadav, Stephane Albon Boubanga Tombet, A. Satou, T. Tamamushi, T. Watanabe, T. Suemitsu, H. Fukidome, Maki Suemitsu, A. A. Dubinov, V. V. Popov, M. Ryzhii, V. Mitin, M. S. Shur, V. Ryzhii, T. Otsuji

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

Abstract

This paper reviews recent advances in the terahertz (THz) graphene-based 2D-heterostructure lasers and amplifiers. The linear gapless graphene energy spectrum enables population inversion under optical and electrical pumping giving rise to the negative dynamic conductivity in a wide THz frequency range. We first theoretically discovered these phenomena and recently reported on the experimental observation of the amplified spontaneous THz emission and single-mode THz lasing at 100K in the current-injection pumped graphene-channel field-effect transistors (GFETs) with a distributedfeedback dual-gate structure. We also observed the light amplification of stimulated emission of THz radiation driven by graphene-plasmon instability in the asymmetric dual-grating gate (ADGG) GFETs by using a THz time-domain spectroscopy technique. Integrating the graphene surface plasmon polariton (SPP) oscillator into a current-injection graphene THz laser transistor is the most promising approach towards room-temperature intense THz lasing.

Original languageEnglish
Title of host publicationTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII
EditorsTianxin Yang, Laurence P. Sadwick
PublisherSPIE
ISBN (Electronic)9781510624764
DOIs
Publication statusPublished - 2019 Jan 1
EventTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII 2019 - San Francisco, United States
Duration: 2019 Feb 42019 Feb 7

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10917
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII 2019
CountryUnited States
CitySan Francisco
Period19/2/419/2/7

Keywords

  • 2D materials
  • Amplifier
  • Graphene
  • Heterostructures
  • Laser
  • 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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  • Cite this

    Yadav, D., Boubanga Tombet, S. A., Satou, A., Tamamushi, T., Watanabe, T., Suemitsu, T., Fukidome, H., Suemitsu, M., Dubinov, A. A., Popov, V. V., Ryzhii, M., Mitin, V., Shur, M. S., Ryzhii, V., & Otsuji, T. (2019). Graphene-based 2D-heterostructures for terahertz lasers and amplifiers. In T. Yang, & L. P. Sadwick (Eds.), Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII [109170G] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10917). SPIE. https://doi.org/10.1117/12.2516494