V. Ya. Aleshkin, A. A. Dubinov, V. I. Ryzhii, “Terahertz laser based on optically pumped graphene: model and feasibility of realization”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2009, Volume 89, Issue 2,Pages <nobr>70

This article is cited in 48 papers

ATOMS, SPECTRA, RADIATIONS

Terahertz laser based on optically pumped graphene: model and feasibility of realization

V. Ya. Aleshkin^a, A. A. Dubinov^a, V. I. Ryzhii^bc

^a Institute for Physics of Microstructures, Russian Academy of Sciences
^b Japan Science and Technology Agency, CREST, 107-0075 Tokyo, Japan
^c University of Aizu, 965-8580 Aizu-Wakamatsu, Japan

Abstract: We consider a terahertz laser based on optically pumped graphene layer and bilayer as the active media and suggested waveguide structure. Using the developed model, we calculate the spectral dependences the dynamic conductivity of the optically pumped graphene layer and bilayer associated with the interband and intraband transitions, estimate the pumping optical power required for lasing, and demonstrate the feasibility of realization of such a laser.

PACS: 78.66.-w, 81.05.Uw

Received: 13.11.2008

Language: English