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

Vladimir V. Lebedev, Sergey S. Vergeles, Petr E. Vorobev

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)577-588
Number of pages12
JournalApplied Physics B: Lasers and Optics
Volume111
Issue number4
DOIs
Publication statusPublished - Jun 2013
Externally publishedYes

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