title: Surface Plasmon's Dispersion Properties of Porous Gold Films.
abstract: 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 Αu NPs were obtained. The relation between the surface plasmon's properties and formation conditions of films with arrays of Αu NPs is discussed.
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine. StetsenkoMax@gmail.com.
authors.forename: M O
authors.initials: MO
authors.lastname: Stetsenko
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: L S
authors.initials: LS
authors.lastname: Maksimenko
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: S P
authors.initials: SP
authors.lastname: Rudenko
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: I M
authors.initials: IM
authors.lastname: Krishchenko
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: A A
authors.initials: AA
authors.lastname: Korchovyi
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: S B
authors.initials: SB
authors.lastname: Kryvyi
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: E B
authors.initials: EB
authors.lastname: Kaganovich
authors.affiliation: V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45, Pr. Nauky, Kyiv, 03028, Ukraine.
authors.forename: B K
authors.initials: BK
authors.lastname: Serdega
keywords: Dispersion properties; Gold nanoparticles; Localized and propagating modes; MPS; PLD; Porous films; Spatial dispersion; Surface plasmons