Extraordinary transmission through a silver film perforated with bowtie-shaped aperture array in midinfrared region

Shao Yu Huang, Hui Hsin Hsiao, Yi Tsung Chang, Hung Hsin Chen, Yu Wei Jiang, Hao Fu Huang, Pei En Chang, Hung Chun Chang, Si Chen Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The transmission spectra of bowtie aperture consisting of opposing triangular holes arranged in rectangular array on silver/silicon structure were investigated. It is found that the second order surface plasmon polaritons mode is much stronger than the fundamental one. In addition, by increasing the separation and angles of the tips or silver film thickness, the second order modes decrease gradually. These phenomena suggest magnetic field coupling between metal tips which results in higher order mode enhancement.

Original languageEnglish
Article number253107
JournalApplied Physics Letters
Volume98
Issue number25
DOIs
Publication statusPublished - Jun 20 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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  • Cite this

    Huang, S. Y., Hsiao, H. H., Chang, Y. T., Chen, H. H., Jiang, Y. W., Huang, H. F., Chang, P. E., Chang, H. C., & Lee, S. C. (2011). Extraordinary transmission through a silver film perforated with bowtie-shaped aperture array in midinfrared region. Applied Physics Letters, 98(25), [253107]. https://doi.org/10.1063/1.3599851