Two Plasma Resonances in Metal Covered Nanoparticles with Small Dielectric Core

dc.contributor.authorEyasu, Seyoum
dc.date.accessioned2018-07-03T06:22:24Z
dc.date.accessioned2023-11-09T11:24:10Z
dc.date.available2018-07-03T06:22:24Z
dc.date.available2023-11-09T11:24:10Z
dc.date.issued2013-06
dc.description.abstractIt was generally accepted that metal covered inclusions in a dielectric host matrix have one maxima of the enhancment factor at one resonant frequency close to the frequency of the surface plasmon. Recently,Sisay shewamare, V.N.Mal'nev with coauthors have shown that the local eld in the metal covered nanoinclusion with small dielectric core has two maxima at two di erent resonant frequencies. The second maxima is not important in metal covered inclusions with small dielectric cores. But for large metal fractions, the maxima of the enhancment factor become the same order of magnitude and must be theken into account. The aim of this thesis is to check the dependence of the resonant frequencies and the enhancment factor of the local eld on the parameters of the composite(metal frac- tion,dielectric function of the core, metal shell, and host matrix) in the spherical in- clusions. And the second objective of the thesis is to calculate the above mention physical quantites in the composites with cylinderical inclusions. The account of two maxima of the enhancment factor of the local eld a ects the linear and non linear optical properties of the composites metal inclusions having small dielectric coresen_US
dc.identifier.urihttp://10.90.10.223:4000/handle/123456789/5604
dc.language.isoenen_US
dc.publisherAddis Ababa Universityen_US
dc.subjectTwo Plasma Resonances in Metal Covereden_US
dc.titleTwo Plasma Resonances in Metal Covered Nanoparticles with Small Dielectric Coreen_US
dc.typeThesisen_US

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