Netiesiogini ų tarp juostini ų šuoli ų įtaka teraherciniam laidumui „dekoruotuose “ dvisluoksnio grafeno heterodariniuose

Translated title of the contribution: Effect of indirect interband transitions on terahertz conductivity in “decorated” graphene bilayer heterostructures

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We demonstrate that the indirect interband generation of photons in the optically or injection pumped graphene bilayer (GBL) heterostructures with an array of metal particles (GBLs “decorated” by metal particles) with population inversion can surpass their intraband (Drude) absorption. This can result in rather large absolute values of thenegative dynamic terahertz (THz) conductivity in a wide range of frequencies at room temperature. This effect enables thecreation of novel THz lasers based on thedecorated GBLs.

Translated title of the contributionEffect of indirect interband transitions on terahertz conductivity in “decorated” graphene bilayer heterostructures
Original languageLithuanian
Pages (from-to)243-248
Number of pages6
JournalLithuanian Journal of Physics
Volume55
Issue number4
Publication statusPublished - 2015 Jan 1

Keywords

  • Array of metal particles
  • Graphene bilayer
  • Population inversion
  • Terahertz radiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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