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Information × Registration Number 0222U002372, 0116U005807 , R & D reports Title Aspects of interaction of high energy particles with the electronic and plasmonic excitations of nanostructures popup.stage_title Head Goliney Igor Yu, Кандидат фізико-математичних наук Registration Date 11-02-2022 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2  Interim report: 6 pages, 1 source. Objects of research: effective medium theory for small metal particles placed in a dielectric medium (composite materials). Purpose: modification of Bruggemann's theory of effective environment to determine the response in the optical field. The theory of effective dielectric permeability of Bruggeman for a medium with metal nanoparticles has been improved by replacing elementary scatterers. It is shown that the effective dielectric constant of Bruggemann can lead to absorption even when no material in the composite absorbs and a modification is proposed that allows to narrow the range of non-physical results. The technique can be used to calculate the frequency dependence of the effective dielectric constant for different thicknesses of the intermediate layer of the matrix material. Product Description popup.authors Onykienko Yegor V. popup.nrat_date 2022-03-09 Close