Localized and delocalized plasmons in metallic nanovoids

T. A. Kelf*, Y. Sugawara, R. M. Cole, J. J. Baumberg, M. E. Abdelsalam, S. Cintra, S. Mahajan, A. E. Russell, P. N. Bartlett

*Corresponding author for this work

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230 Citations (Scopus)
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Abstract

Nanostructured metal films 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 for different sample geometries reveal the spectral dispersion of several different types of surface plasmon modes. The dependence of the energies of both delocalized Bragg and localized Mie plasmons on the void goemetry is presented, along with theoretical models to explain some of these experimental findings. Strong interactions between the different plasmon modes as well as other mixing processes are identified. Understanding such plasmonic crystals allows for the engineering of devices tailored for a wide range of sensing application.

Original languageEnglish
Article number245415
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume74
Issue number24
DOIs
Publication statusPublished - 2006

Bibliographical note

Kelf TA, Sugawara Y, Cole RM, Baumberg JJ, Abdelsalam ME, Cintra S, et al., Physical review. B, Condensed matter and materials physics, 74(24), 245415, 2006. Copyright 2006 by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevB.74.245415

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