Near-field optical properties and surface plasmon effects generated by a dielectric hole in a silver-shell nanocylinder pair.

  title={Near-field optical properties and surface plasmon effects generated by a dielectric hole in a silver-shell nanocylinder pair.},
  author={Yuan-Fong Chou Chau and H. H. Yeh and Din Ping Tsai},
  journal={Applied optics},
  volume={47 30},
Near-field optical properties and surface plasmon effects in a silver-shell nanocylinder pair with five different dielectric holes (DHs) that interact with a transverse magnetic mode incident plane wave are simulated by use of the finite-element method, which includes the investigation of particle-particle interaction. The proposed structure exhibits a redshifted localized surface plasmon that can be tuned over an extended wavelength range by varying the dielectric constant in DHs and the… 

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