Resonant properties, of modified triangular plasmonic nanoparticles with higher field concentration

In this paper, we present an analysis of the resonant response of modified triangular metallic nanoparticles with polynomial sides. The particles are illuminated by an incident plane wave and the method of moments is used to solve numerically the electromagnetic scattering problem. We investigate sp...

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Bibliographic Details
Published inJournal of Microwaves, Optoelectronics and Electromagnetic Applications Vol. 12; no. 2; pp. 325 - 335
Main Authors Costa, Karlo Q. da, Dmitriev, Victor A.
Format Journal Article
LanguageEnglish
Published Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo 01.12.2013
Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
Subjects
ENGINEERING, ELECTRICAL & ELECTRONIC
metal nanoparticles
near field analysis
OPTICS
Plasmonics
resonant properties
spectral response
Plasmonics
metal nanoparticles
spectral response
near field analysis
resonant properties
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Summary:In this paper, we present an analysis of the resonant response of modified triangular metallic nanoparticles with polynomial sides. The particles are illuminated by an incident plane wave and the method of moments is used to solve numerically the electromagnetic scattering problem. We investigate spectral response and near field distribution in function of the length and polynomial order of the nanoparticles. Our results show that in the analyzed wavelength range (0.5-1.8) µm these particles possess smaller number of resonances and their resonant wavelengths, near field enhancement and field confinement are higher than those of the conventional triangular particle with linear sides.
ISSN:2179-1074
2179-1074
DOI:10.1590/S2179-10742013000200007