Smirnova, DariaGorbach, Andrey VIorsh, I. V.Shadrivov, IlyaKivshar, Yuri2015-12-131098-0121http://hdl.handle.net/1885/73767We study nonlinear propagation of electromagnetic waves in two closely spaced graphene layers and demonstrate that this double-layer graphene waveguide can operate as an efficient nonlinear optical coupler for both continuous plasmons and for subwavelengtAuthor/s retain copyright201310.1103/PhysRevB.88.0454432015-12-11