Plasmonic amplification of terahertz radiation in a periodic graphene structure with the carrier injection

Olga V. Polischuk, Denis V. Fateev, Taiichi Otsuji, Vyacheslav V. Popov

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Injection pumping of the pristine graphene is a promising alternative to optical pumping, but it is not obvious how to properly combine electronic and plasmonic features in one and the same device in order to obtain the terahertz plasmon amplification in graphene with injection pumping. This paper shows that an amplified plasmon mode can be effectively excited at the plasmon resonance frequencies in an active ungated region graphene with injecting (absorbing) gated parts of the periodic graphene structure. Necessary conditions for the plasmon lasing in the structure are found.

Original languageEnglish
Article number081110
JournalApplied Physics Letters
Volume111
Issue number8
DOIs
Publication statusPublished - 2017 Aug 21

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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