SURFACE PLASMON OF TWO SMALL PARTICLES OF ACCOUNT MULTIPOLE INTERACTION BETWEEN THEM.

Authors

  • N. Skoda
  • S. Shostak

Abstract

The spectrum of superficial fashions of two metallic particles is considered in the external electric field E was calculated. A review on the external (variable in course of time) electric field of two bullet nanoparticles which are in the distance done from other with a wave-length l0 considerably anymore for the size of particles and d was founded.
The electrodynamical response of small particles system on external electric field was investigated. The resulting electric field was calculated for a system of small spherical particles of different radii i
R and permittivities ( ) i ε ω placed near a substrate. Analytical expressions for the polarizability of a system of two small particles were received taking into account multipole substrate-particle interactions as well as interactions between the particles themselves. For a case of two different spherical particles, requencies of surface plasmon modes were obtained. All the calculations are performed in the electrostatic approximation.