Terahertz lasers based on optically pumped multiple graphene structures with slot-line and dielectric waveguides

V. Ryzhii, A. A. Dubinov, T. Otsuji, V. Mitin, M. S. Shur

Research output: Contribution to journalArticlepeer-review

130 Citations (Scopus)

Abstract

Terahertz (THz) lasers on optically pumped multiple-graphene-layer (MGL) structures as their active region are proposed and evaluated. The developed device model accounts for the interband and intraband transitions in the degenerate electron-hole plasma generated by optical radiation in the MGL structure and the losses in the slot or dielectric waveguide. The THz laser gain and the conditions of THz lasing are found. It is shown that the lasers under consideration can operate at frequencies ≳1 THz at room temperatures.

Original languageEnglish
Article number054505
JournalJournal of Applied Physics
Volume107
Issue number5
DOIs
Publication statusPublished - 2010 Mar 26

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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