title: Double-graphene-layer terahertz laser: concept, characteristics, and comparison.
abstract: We propose and analyze the concept of injection terahertz (THz) lasers based on double-graphene-layer (double-GL) structures utilizing the resonant radiative transitions between GLs. We calculate main characteristics of such double-GL lasers and compare them with the characteristics of the GL lasers with intra-GL interband transitions. We demonstrate that the double-GL THz lasers under consideration can operate in a wide range of THz frequencies and might exhibit advantages associated with the reduced Drude absorption, weaker temperature dependence, voltage tuning of the spectrum, and favorable injection conditions.
authors: Victor
authors: V
authors: Ryzhii
authors: Alexander A
authors: AA
authors: Dubinov
authors: Taiichi
authors: T
authors: Otsuji
authors: Vladimir Ya
authors: VY
authors: Aleshkin
authors: Maxim
authors: M
authors: Ryzhii
authors: Michael
authors: M
authors: Shur