This article is cited in 5 papers

Negative terahertz conductivity of graphene when pumping by optical plasmons

I. M. Moiseenko^ab, M. Yu. Morozov^a, V. V. Popov<sup>ab

a</sup> Saratov Branch, Kotel'nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
^b Saratov State University

Abstract: The diffusion pumping of graphene by optical plasmons, propagating in metal, and separated from the graphene by a semiconductor layer has been investigated theoretically. It is shown that pumping of graphene with optical plasmons provides maximum negative terahertz conductivity of graphene at a lower (approximately by 25%) pumping power compared to a diffusion pumping of graphene with optical radiation.

Received: 13.12.2016

DOI: 10.21883/PJTF.2017.11.44696.16605

 English version: Technical Physics Letters, 2017, 43:6, 523–526

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