Negative terahertz conductivity of graphene when pumping by optical plasmons


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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.

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I. Moiseenko

Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch); Saratov State University

编辑信件的主要联系方式.
Email: MoiseenkoIM@yandex.ru
俄罗斯联邦, Saratov, 410019; Saratov, 410012

M. Morozov

Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)

Email: MoiseenkoIM@yandex.ru
俄罗斯联邦, Saratov, 410019

V. Popov

Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch); Saratov State University

Email: MoiseenkoIM@yandex.ru
俄罗斯联邦, Saratov, 410019; Saratov, 410012

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