Plasmonic band Gaps and trapped plasmons on nanostructured metal surfaces

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

doi:10.1103/PhysRevLett.95.116802

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 journal › Article › peer-review

166 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 language	English
Article number	116802
Journal	Physical Review Letters
Volume	95
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.95.116802
Publication status	Published - 9 Sept 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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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.",

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AU - Abdelsalam, M.

AU - Bartlett, P. N.

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AB - 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.

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Plasmonic band Gaps and trapped plasmons on nanostructured metal surfaces

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