title: Surface plasmon polariton amplification upon electrical injection in highly integrated plasmonic circuits.
abstract: We propose a very efficient approach for amplification of surface plasmon polaritons (SPPs) in a nanoscale waveguiding geometry with strong (∼λ/10) mode confinement. The implemented scheme of electric pumping is based on a single-heterostructure Schottky-barrier diode and has been numerically shown to ensure full compensation of the SPP propagation losses at wavelengths around 3 μm and, moreover, to provide net SPP gain. The presented concept creates the backbone for the implementation of highly integrated large-scale hybrid electronic-plasmonic circuits operating at extremely high speeds and opens the prospects for the realization of integrated coherent SPP sources.
authors.affiliation: Laboratory of Nanooptics and Femtosecond Electronics, Department of General Physics, Moscow Institute of Physics and Technology (State University), 9 Institutsky Lane, Dolgoprudny 141700, Russian Federation. feddu@mail.ru
authors.forename: Dmitry Yu
authors.initials: DY
authors.lastname: Fedyanin
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Krasavin
authors.forename: Aleksey V
authors.initials: AV
authors.lastname: Arsenin
authors.forename: Anatoly V
authors.initials: AV
authors.lastname: Zayats