Journal of Siberian Federal University. Mathematics & Physics / Surface Plasmon-Polaritons In A Two-Layer Graphene Structure With A Dielectric Barrier Layer Under Various Control Regimes

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2022 15 (6)
Authors
Evseev, Dmitry A.; Eliseeva, Svetlana V.; Shutyi, Anatolij M.; Sementsov, Dmitry I.
Contact information
Evseev, Dmitry A.: Ulyanovsk State University Ulyanovsk, Russian Federation; ; Eliseeva, Svetlana V.: Ulyanovsk State University Ulyanovsk, Russian Federation; OCRID: 0000-0002-8288-4158; Shutyi, Anatolij M.: Ulyanovsk State University Ulyanovsk, Russian Federation; ; Sementsov, Dmitry I.: Ulyanovsk State University Ulyanovsk, Russian Federation; OCRID: 0000-0001-6760-0156
Keywords
doped and inverted graphene; terahertz frequency range; symmetrical planar structure; chemical potential; real and imaginary parts of the propagation constant; amplification
Abstract

The dispersion dependences of a symmetric dielectric waveguide with graphene plates were compared in two regimes of graphene potential control from two sides of the structure. A general dispersion relation was obtained, the numerical analysis of which reveals the possibility of controlling the parameters of amplified surface modes. A numerical analysis of the dispersion relation solutions in the case of symmetry and asymmetry of the control potential on graphene layers has been carried out. A solution has been found that grows in amplitude with time in the region of negative conductivity of graphene in the presence of an inverse population of the levels

Pages
730–741
DOI
10.17516/1997-1397-2022-15-6-730-741
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/149660