Terahertz laser with optically pumped graphene layers and fabri-perot resonator

Alexander A. Dubinov, Vladimir Ya Aleshkin, Maxim Ryzhii, Taiichi Otsuji, Victor Ryzhii

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)

Abstract

We propose and substantiate the concept of terahertz (THz) laser based on the optically pumped graphene layers and the resonant cavity of the Fabri-Perot type. The pumping scheme which corresponds to the optical interband excitation of graphene followed by the emission of an optical phonons cascade provides the population inversion for the interband transitions in a relatively wide range of THz frequencies. We demonstrate that the THz lasing in the device under consideration at room temperatures is feasible if its structure is optimized. The frequency and output power of the generated THz radiation can be tuned by varying the distance between the mirrors.

Original languageEnglish
Article number092301
JournalApplied Physics Express
Volume2
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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