2019-03-112019-03-112017CRUZ, André Felipe Souza da. Análise do espalhamento eletromagnético de Rayleigh em nanoesferas core-shell. Orientador: Karlo Queiroz da Costa. 2017. 119 f. Trabalho de Curso (Bacharelado em Engenharia Elétrica) – Faculdade de Engenharia Elétrica, Campus Universitário de Tucuruí, Universidade Federal do Pará, Tucuruí, 2017. Disponível em: http://bdm.ufpa.br/jspui/handle/prefix/1171. Acesso em:.http://bdm.ufpa.br/jspui/handle/prefix/1171The study of metallic nanoparticles has been of great importance to development of sensing devices in nanostructures, and applications in nanophotonics. This work is a theoretical study of the interaction between an electromagnetic wave and a gold nanostructure with spherical geometry, which has a thin dielectric layer of silica. It is considered that the effective diameter of the part is much smaller than the wavelength of the electric field, characterizing the almost static Rayleigh scattering. Using an analytical model through the Laplace equation, an interaction between the field of a point charge and a nanosphere, between a uniform field and a nanosphere, and between a uniform field and a core-shell nanosphere was verified. Then, using a numerical model, an interaction of the electric field between two core-shell nanospheres was verified, as a function of the distance between them. For an isolated nanoparticle, the efficiency parameters in scattering, absorption and extinction cross sections were compared with experimental data of Absorbance curves. The results show the changes resulting from interactions in the spectrum range ranging from 450nm to 750nm,and using the modeling approach is verified the range of validity of the almost static method for the dimensions of the particles.Acesso AbertoEletromagnetismoOndas eletromagnéticas - EspalhamentoNanopartículasCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::TELECOMUNICACOES::TEORIA ELETROMAGNETICA, MICROONDAS, PROPAGACAO DE ONDAS, ANTENASTrabalho de Curso - Graduação - Monografia