International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

In this paper, the authors studied the influence of different phenomena and materials properties on the frequency spectrum of the surface plasmon-polariton (SPP) waves behaviour in “dielectric/metal/dielectric” structures. Among them are spatial dispersion, quantization of energy levels, electron-electron interaction (Coulomb correlations) thickness of a metal layer. Established that for atomically thin metal films mentioned effects affect the frequency spectrum significantly. Mentioned that taking into account quantum-sized effects reveals a specific oscillatory picture of the spectrum that repeats one obtained for chemical potential. Proposed model yields results that have a quite good agreement with an experimental data.