title: Guiding light at the nanoscale: numerical optimization of ultrasubwavelength metallic wire plasmonic waveguides.
abstract: We present a comprehensive numerical analysis of the guiding of a photonic signal in the form of a strongly confined asymmetric surface plasmon polariton (SPP) mode along metallic nanowire waveguides. The proposed approach provides extremely high localization of the SPP mode, nanoscale integration density, and a feasible technological platform. The waveguide performance was studied over a broad range of subwavelength cross sections at a telecommunication wavelength. It was optimized using a conventional figure of merit for data transfer along a straight waveguide and an all-inclusive figure of merit has been introduced.
authors.affiliation: Department of Physics, King’s College London, Strand, London WC2R 2LS, UK. alexey.krasavin@kcl.ac.uk
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Krasavin
authors.forename: Anatoly V
authors.initials: AV
authors.lastname: Zayats