A comparative study of solid-silver and silver-shell nanodimers on surface plasmon resonances

Authors: Chau, Yuan-Fong1; Yeh, Han-Hsuan2

Source: Journal of Nanoparticle Research, Volume 13, Number 2, February 2011 , pp. 637-644(8)

Publisher: Springer

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Abstract:

We investigated numerically the scattering cross sections and near-field intensities of solid-silver and silver-shell (shell thickness d = 10 nm) nanodimers that interact with incident plane wave by the use of finite-element method with three-dimensional models. Results show that the silver-shell cases exhibit tunable surface plasmon resonances and its rotational effects can induce more surface plasmons in a wider range of wavelength that are not observed for the solid-silver cases with the same volume (1,046,666 nm3).

Keywords: Finite element method; Metal nanoshells; Modeling and simulation; Nanodimers; Surface plasmon resonances

Document Type: Research Article

DOI: http://dx.doi.org/10.1007/s11051-010-0058-4

Affiliations: 1: Department of Electronic Engineering, Ching Yun University, Jung-Li, Taiwan 320, ROC, Email: yfc01@cyu.edu.tw 2: Department of Electronic Engineering, Ching Yun University, Jung-Li, Taiwan 320, ROC

Publication date: February 1, 2011

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