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Paper   IPM / Nano-Sciences / 13979
School of Nano Science
  Title:   Plasmon Hybridization in a Symmetry-Broken Metallic Nanotube Above a Substrate
  Author(s):  Afshin Moradi
  Status:   Published
  Journal: Plasmonisc
  No.:  4
  Vol.:  10
  Year:  2015
  Pages:   999-1003
  Publisher(s):   Springer
  Supported by:  IPM
  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 (ω0, ω+, and ω−) are found. Numerical results show ω+ and ω− are variable with the geometrical characteristics of the system, while the value of ω0 is always stable, when the dielectric permittivity of nanotube core, and dielectric between the nanotube and substrate are same

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