Localized surface-plasmon resonances in periodic nondiffracting metallic nanoparticle and nanohole arrays

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Localized surface-plasmon resonances in periodic nondiffracting metallic nanoparticle and nanohole arrays

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Title: Localized surface-plasmon resonances in periodic nondiffracting metallic nanoparticle and nanohole arrays
Author: Parsons, J.
Hendry, Euan
Burrows, Christopher P.
Auguié, Baptiste
Sambles, J. Roy
Barnes, William L.
Citation: 79 (7), article 073412
Publisher: American Physical Society
Journal: Physical Review B
Date Issued: 2009
URI: http://hdl.handle.net/10036/52595
DOI: 10.1103/PhysRevB.79.073412
Links: http://dx.doi.org/10.1103/PhysRevB.79.073412 http://link.aps.org/doi/10.1103/PhysRevB.79.073412
Abstract: We compare the optical response of periodic nondiffracting metallic nanoparticle and nanohole arrays. Experimental data from both structures show a pronounced minimum in their wavelength-dependent transmittance that, through numerical modeling, we identify as being due to the excitation of localized surface-plasmon resonances associated with the nanoparticles/nanoholes. Our main finding is that, while the optical response of the nanoparticle arrays is largely independent of interparticle separation, the response from nanohole arrays shows a marked dependence on interhole separation. We attribute this effect to coupling between localized surface-plasmon resonances mediated by the symmetric surface plasmon-polaritons associated with the metal film. Further numerical modeling supports this view.
Type: Article
Description: J. Parsons, Euan Hendry, C. P. Burrows, Baptiste Auguié, J. Roy Sambles, and William L. Barnes, Physical Review B, Vol. 79, article 073412 (2009). Copyright © 2009 by the American Physical Society.
Keywords: goldmetallic thin filmsnanoparticlespolaritonssurface enhanced Raman scatteringsurface plasmon resonance
ISSN: 1098-01211550-235X


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