Feasibility of terahertz lasing in optically pumped epitaxial multiple graphene layer structures

V. Ryzhii, M. Ryzhii, A. S. Satou, T. Otsuji, A. A. Dubinov, V. Ya Aleshkin

Research output: Contribution to journalArticlepeer-review

130 Citations (Scopus)

Abstract

A multiple graphene layer (MGL) structure with a stack of GLs and a highly conducting bottom GL on SiC substrate pumped by optical radiation is considered as an active region of terahertz and far infrared lasers with external metal mirrors. The dynamic conductivity of the MGL structure is calculated as a function of the signal frequency, the number of GLs, and the optical pumping intensity. The utilization of optically pumped MGL structures might provide the achievement of lasing with the frequencies of about 1 THz at room temperature due to a high efficiency of pumping.

Original languageEnglish
Article number084507
JournalJournal of Applied Physics
Volume106
Issue number8
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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