A.A. Dubinov, V. Ya Aleshkin, S.V. Morozov, V. Ryzhii, T. Otsuji,
https://www.sciencedirect.com/science/article/abs/pii/S1230340218301550
In this work we propose and analyze the possibility of creating terahertz plasmon-emitting graphene-channel transistor. It is shown that at electric pumping the damping of the terahertz plasmons can give way to their amplification, when the real part of the dynamic conductivity of graphene becomes negative in the terahertz range of frequencies due to the interband population inversion.
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