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Numerical simulations for understanding fundamental characteristics of the surface plasmon polariton gap waveguide (SPGW) has been demonstrated. The SPGW excited through an aperture have been demonstrated by the three-dimensional simulations using a volume integral equation method. Complex propagation constants calculated by the Method of Lines (MoL) has been shown. Applications of SPGWs to the nanosize...
In this paper, we present the numerical study about the complex propagation constants of SPP rectangular waveguide by the method of lines (MoL) with high accuracy. We calculate the dependences of complex propagation constants on the waveguide sizes and wavelength. The fundamental, important and interesting characteristics of SPP rectangular waveguide have been revealed.
A waveguide structure using surface plasmon polaritons that can change the optical polarization of nanometric spot size is proposed and simulated. The proposed structure employs mode-coupling between two surface plasmon polariton (SPP) gap waveguides (SPGWs) that are adjacently placed in an orthogonal configuration. The guided SPP excited in one of the SPGWs is transferred to the other SPGW by mode-coupling...
The guided waves in the surface plasmon polariton gap waveguide (SPGW) excited through an aperture have been investigated by the three-dimensional simulations using a volume integral equation. The complex propagation constants of the guided waves have been calculated from the simulated optical fields using the least-squares fitting. Applications of SPGWs to nanosize E-plane planar optical circuits...
A metallic probe that provides a strongly localized and strongly enhanced optical near-field at the probe-tip has been investigated. Since the probe-tip is illuminated by SPPs inside the aperture, illumination by an external light is not necessary for this probe. It was found that the probe can create an optical near-field intensity that is about 103 times larger than the incident intensity on the...
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