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Plasmon Hybridization in a Symmetry-Broken Metallic Nanotube Above a Substrate

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Abstract

An explicit form of the surface plasmon dispersion relation of a metallic nanotube with a nonconcentric core above a metallic substrate is presented, based on the separability of Laplace equation in bipolar coordinates. Three distinct plasmon mode frequencies (ω 0, ω +, and ω −) are found. Numerical results show ω + and ω − are variable with the geometrical characteristics of the system, while the value of ω 0 is always stable, when the dielectric permittivity of nanotube core, and dielectric between the nanotube and substrate are same.

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Authors and Affiliations

  1. Department of Engineering Physics, Kermanshah University of Technology, Kermanshah, Iran

    Afshin Moradi

  2. Department of Nano Sciences, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran

    Afshin Moradi

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  1. Afshin Moradi
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Correspondence to Afshin Moradi.

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Moradi, A. Plasmon Hybridization in a Symmetry-Broken Metallic Nanotube Above a Substrate. Plasmonics 10, 999–1003 (2015). https://doi.org/10.1007/s11468-015-9891-8

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  • DOI: https://doi.org/10.1007/s11468-015-9891-8

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