Applied Physics B

, Volume 111, Issue 4, pp 577–588 | Cite as

Surface modes in metal–insulator composites with strong interaction of metal particles

  • Vladimir V. Lebedev
  • Sergey S. Vergeles
  • Petr E. Vorobev
Article

Abstract

We theoretically examine plasmonic resonance excited between two close metallic grains embedded into a dielectric matrix. The grains sizes are assumed to be much less than the wavelength of the electromagnetic wave in the dielectric medium and the grain’s separation is assumed to be much smaller than the grains sizes. A qualitative scheme is developed that enables one to estimate frequency of the plasmonic resonance and value of the field enhancement inside the gap. Our general arguments are confirmed by rigorous analytic solution of the problem for simplest geometry—two identical spherical grains.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Vladimir V. Lebedev
    • 1
    • 2
  • Sergey S. Vergeles
    • 1
    • 2
  • Petr E. Vorobev
    • 1
    • 2
  1. 1.Landau Institute for Theoretical Physics RASMoscowRussia
  2. 2.Moscow Institute of Physics and TechnologyDolgoprudnyjRussia

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