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

: pp. 297–303
Received: May 20, 2019
Revised: November 11, 2019
Accepted: November 15, 2019

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

Lviv Polytechnic National University
Lviv Polytechnic National University
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.

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