Plasmonic band Gaps and trapped plasmons on nanostructured metal surfaces

T. A. Kelf*, Y. Sugawara, J. J. Baumberg, M. Abdelsalam, P. N. Bartlett

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    160 Citations (Scopus)
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    Abstract

    Nanostructured metal surfaces comprised of periodically arranged spherical voids are grown by electrochemical deposition through a self-assembled template. Detailed measurements of the angle- and orientation-dependent reflectivity reveal the spectral dispersion, from which we identify the presence of both delocalized Bragg and localized Mie plasmons. These couple strongly producing bonding and antibonding mixed plasmons with anomalous dispersion properties. Appropriate plasmon engineering of the void morphology selects the plasmon spatial and spectral positions, allowing these plasmonic crystal films to be optimized for a wide range of sensing applications.

    Original languageEnglish
    Article number116802
    JournalPhysical Review Letters
    Volume95
    Issue number11
    DOIs
    Publication statusPublished - 9 Sep 2005

    Bibliographical note

    Kelf TA, Sugawara Y, Baumberg JJ, Abdelsalam M and Bartlett PN, Physical review letters, 95(11), 116802, 2005. The original article can be found at http://dx.doi.org/10.1103/PhysRevLett.95.116802

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