electronic devices. Different plasmonic waveguide structures have been proposed, such as layered structures, metallic nanowires, metallic nanoparticle arrays, hybrid wedge plasmonic waveguides, and other configurations. Here, a typical plasmonic waveguide consisting of a thin film sandwiched between a cladding

Transmission characteristics in plasmonic multimode Transmission characteristics in plasmonic multimode waveguides 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 ?160 ?140 ?120 nected plasmonic waveguide with metallic layer width wm = 0.8µm. The wave propagates The cavity consists of a metal-coated III-V semiconductor nanopillar which funnels a large fraction of spontaneous emission into the fundamental mode of an InP waveguide bonded to a silicon Despite many efforts to characterize the propagation parameters of these subwavelength 1D plasmonic waveguides, such as Ag nanowires, large discrepancies exist among available reports owing to their sensitivity to the relative weights of co-existing SPP modes and the lack of a method of decoupling these modes and analyzing them separately. a novel electrically tunable nanocube polymer nano-structure with reversible tuning of plasmonic proper-ties. These hybrid materials demonstrate spectacular multicyclical reversible tunability of plasmonic optical properties (absorbance and scattering) with an ortho-gonal plasmonic resonance shift. A silver nanocube LB Based on the contra-directional coupling, a composite structure consisting of two coupled metal-insulator-metal (MIM) waveguides is proposed to act as an attractive plasmonic reflector. By introducing a defect into one of the MIM waveguides, we show that such a composite structure can be operated as a plasmonic nanocavity with a high quality factor. nanoscale dielectric gap. The coupling between the plasmonic and waveguide modes across the gap enables 'capacitor-like' energy storage that allows effective subwavelength transmission in non-metallic regions. In this