Controlling surface plasmon excitation of pair arrays of metallic nanocylinders

M. Y. Ng, W. C. Liu*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)

摘要

Surface plasmon excitation of pair arrays of silver nanocylinders is studied using finite-difference time-domain simulations. Strong local fields are generated around the nanocylinders due to excitation of localized surface plasmon and electromagnetic fields are confined effectively in the gaps between the nanocylinders. Surface plasmon resonance and local-field enhancement of two-pair arrays can be controlled by changing the illumination direction of the incident light due to induced asymmetric polarization charges. Complex resonant modes could be excited with increasing number of silver nanocylinder pairs. Selective local-field enhancement is observed in the gaps of the pairs by changing the interpair distance of four-pair arrays.

原文英語
頁(從 - 到)391-395
頁數5
期刊Applied Physics A: Materials Science and Processing
89
發行號2
DOIs
出版狀態已發佈 - 2007 11月

ASJC Scopus subject areas

  • 一般化學
  • 一般材料科學

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