O. V. Polishchuk, D. V. Fateev, V. V. Popov, “Amplification of terahertz radiation in a plasmon $n$-$i$-$p$-$i$ graphene structure with charge-carrier injection”, Fizika i Tekhnika Poluprovodnikov, 2017, Volume 51, Issue 11,Pages 1514

This article is cited in 11 papers

XXI International Symposium ''Nanophysics And Nanoelectronics'', Nizhny Novgorod, March 13-16, 2017

Amplification of terahertz radiation in a plasmon $n$-$i$-$p$-$i$ graphene structure with charge-carrier injection

O. V. Polishchuk^a, D. V. Fateev^a, V. V. Popov^ba

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

Abstract: The absorption/amplification spectrum of terahertz radiation in inhomogeneous graphene ($n$-$i$-$p$-$i$ structure) with a periodic dual metal grating is theoretically investigated. It is shown that the amplification of terahertz radiation sharply increases at the plasmon-resonance frequency, when losses due to electron scattering and emission are balanced by the plasmon gain (related to the stimulated radiative interband recombination of electron–hole pairs in the inverted region of graphene).

Received: 27.04.2017
Accepted: 12.05.2017

DOI: 10.21883/FTP.2017.11.45102.16