%0 Journal Article
%T Surface Plasmon¡¯s Dispersion Properties of Porous Gold Films
%A A. A. Korchovyi
%A B. K. Serdega
%A E. B. Kaganovich
%A I. M. Krishchenko
%A L. S. Maksimenko
%A M. O. Stetsenko
%A S. B. Kryvyi
%A S. P. Rudenko
%J Archive of "Nanoscale Research Letters".
%D 2016
%R 10.1186/s11671-016-1327-7
%X Nanostructure porous films with arrays of gold nanoparticles (Au NPs) have been produced by pulsed laser deposition. Dispersion properties of surface plasmons have been studied by the modulation-polarization spectroscopy technique. The dispersion relations for radiative modes and two types of non-radiative modes of localized and propagating surface plasmons were obtained. The branches of propagating modes were characterized by negative group velocity caused by spatial dispersion of dielectric function. The propagating modes are caused by dipole-dipole interactions between adjacent Au NPs. The frequencies and relaxation parameters of surface plasmon resonances and the plasma frequencies for ¦¡u NPs were obtained. The relation between the surface plasmon¡¯s properties and formation conditions of films with arrays of ¦¡u NPs is discussed
%K Gold nanoparticles
%K Porous films
%K Surface plasmons
%K Localized and propagating modes
%K Dispersion properties
%K Spatial dispersion
%K PLD
%K MPS
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771662/