Abstract
Modal properties of a plasmon guiding structure consisting of two parallel metallic nanowires embedded in a dielectric material have been analyzed employing the finite element method. The coupling characteristics of the surface plasmon supermode reveal extreme yet linearly changing confinement for a moderate range of nanowire separation. The potentialities of this structure in different nanophotonic applications have been explored in this study based on modal characteristics variation with the alteration of both the operating wavelength and the cross-sectional geometry.
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