The Research of Surface Plasmon in Nanoparticle Array
Date Issued
2008
Date
2008
Author(s)
Tsai, Yu-Ting
Abstract
Surface Plasmon resonances of silver nanoparticle array under the Gaussian beam are investigated. By using Maxwell’s equation and mutli-multipole method, a set of linear equations of expansion coefficients is first constructed by satisfying boundary condition pointwisely. Singular value decomposition is then used to solve the overdetermined linear equation. Numerical results of sliver nanoparticle array under the Gaussian beam with energy transmission are presented. The single nanoparticle array, double nanoparticle array, Y-shape nanoparticle array and hexagonal nanoparticle array are discussed. It is demonstrated from numerical result that the energy transmission are depend on radius and gap of particles, and different particle radius lead to bandwidth red-shift. Energy fails to propagate to the end of nanoparticle turned structure, and low frequency pass filter appears in both case of hexagonal structure.
Subjects
Surface Plasmon
Nanoparticle Structure
Multiple Multipole Method
Singular Value Decomposition
Gaussian Beam
Energy transmission
Type
thesis
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