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  4. Influence of the electroneutrality of a metal layer on the plasmon spectrum in dielectric-metal-dielectric structures

Influence of the electroneutrality of a metal layer on the plasmon spectrum in dielectric-metal-dielectric structures

MMC.
2019;
Volume 6, Number 2
: pp. 297–303
https://doi.org/10.23939/mmc2019.02.297
Received: May 20, 2019
Revised: November 11, 2019
Accepted: November 15, 2019

Mathematical Modeling and Computing, Vol. 6, No. 2, pp. 297–303 (2019)

Authors:
  1. P. P. Kostrobij
  2. B. M. Markovych
  3. V. Ye. Polovyi
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

In this paper, we propose a model that allows us to investigate the influence of quantum size effects and the electroneutrality condition on the spectrum of SPPs waves as a function of metal thickness in heterogeneous dielectric/metal/dielectric structures.  It is shown that for ultrathin metal layers, the spectrum of plasmon waves has oscillatory behavior in the domain of small wave vectors  (k~0.05-0.2 1/nm).  The amplitude of oscillations depends on the conditions of electroneutrality for the dielectric/metal/dielectric structure.

surface plasmon
plasmon spectrum
metal layer thickness
dielectric permittivity
electroneutrality
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