Broadband terahertz-light emission by current-injection distributed-feedback dual-gate graphene-channel field- effect transistor

Deepika Yadav, Youssef Tobah, Junki Mitsushio, Gen Tamamushi, Takayuki Watanabe, Alexander A. Dubinov, Maxim Ryzhii, Victor Ryzhii, Taiichi Otsuji

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

Abstract

We report on amplified spontaneous broadband terahertz emission in 1-7.6 THz range at 100 K via current injection in a distributed-feedback (DFB) dual-gate graphene-channel transistor. The device exhibited a nonlinear threshold-like behavior with respect to the currentinjection level. A precise DFB cavity design is expected to transcend the observed spontaneous broadband emission to single-mode THz lasing.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationApplications and Technology, CLEO_AT 2017
PublisherOSA - The Optical Society
ISBN (Print)9781943580279
DOIs
Publication statusPublished - 2017
EventCLEO: Applications and Technology, CLEO_AT 2017 - San Jose, United States
Duration: 2017 May 142017 May 19

Publication series

NameOptics InfoBase Conference Papers
VolumePart F43-CLEO_AT 2017

Other

OtherCLEO: Applications and Technology, CLEO_AT 2017
CountryUnited States
CitySan Jose
Period17/5/1417/5/19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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