Controlling surface plasmon of several pair arrays of silver-shell nanocylinders

Yuan Fong Chau, Han Hsuan Yeh, Chiung Chou Liao, Hong Fa Ho, Chi Yu Liu, Din Ping Tsai

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Abstract

We studied, numerically, the characteristics of the surface plasmon of a system consisting of several pair arrays of silver-shell nanocylinders. Effects from different numbers of pair arrays, illumination wavelengths, and the core refractive index of silver-shell nanocylinders are studied by using the finite-element method. Results show that the peak wavelengths shift to shorter wavelengths (blueshifted) when the number of pair arrays increases from three to six. The near-field intensities in the gaps of the proposed type 1 structure can be tuned much stronger with a redshift by varying the wavelength of the incident light. The main features of surface plasmon effects can be qualitatively understood from some simple models of three, four, five, and six pairs of silver-shell nanocylinders.

Original languageEnglish
Pages (from-to)1163-1169
Number of pages7
JournalApplied Optics
Volume49
Issue number7
DOIs
Publication statusPublished - 2010 Mar 1

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Chau, Y. F., Yeh, H. H., Liao, C. C., Ho, H. F., Liu, C. Y., & Tsai, D. P. (2010). Controlling surface plasmon of several pair arrays of silver-shell nanocylinders. Applied Optics, 49(7), 1163-1169. https://doi.org/10.1364/AO.49.001163