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

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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).

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Acknowledgments

The authors are thankful for the financial support from National Science Council, Taiwan, ROC, under Grant number NSC 99-2112-M-231-001-MY3 and NSC-99-2120-M-002-012. They would also like to thank National Center for High-Performance Computing for support by providing computing facility and software.

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  1. Department of Electronic Engineering, Ching Yun University, Jung-Li, Taiwan 320, ROC

    Yuan-Fong Chau & Han-Hsuan Yeh

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  1. Yuan-Fong Chau
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  2. Han-Hsuan Yeh
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Correspondence to Yuan-Fong Chau.

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Chau, YF., Yeh, HH. A comparative study of solid-silver and silver-shell nanodimers on surface plasmon resonances. J Nanopart Res 13, 637–644 (2011). https://doi.org/10.1007/s11051-010-0058-4

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  • DOI: https://doi.org/10.1007/s11051-010-0058-4

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