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Parallel collective resonances in arrays of gold nanorods

AuthorsVitrey, Alan CSIC; Aigouy, Lionel; Prieto Vizán, Patricia CSIC; García-Martín, José Miguel CSIC ORCID ; González Sagardoy, María Ujué CSIC ORCID
KeywordsCollective resonances
Near-field optical microscopy (SNOM)
Near-field patterns
Rayleigh anomalies
Surface plasmons
Issue Date19-Mar-2014
PublisherAmerican Chemical Society
CitationNano Letters 14(4): 2079-2085 (2014)
AbstractIn this work we discuss the excitation of parallel collective resonances in arrays of gold nanoparticles. Parallel collective resonances result from the coupling of the nanoparticles localized surface plasmons with diffraction orders traveling in the direction parallel to the polarization vector. While they provide field enhancement and delocalization as the standard collective resonances, our results suggest that parallel resonances could exhibit greater tolerance to index asymmetry in the environment surrounding the arrays. The near- and far-field properties of these resonances are analyzed, both experimentally and numerically. © 2014 American Chemical Society.
Publisher version (URL)http://dx.doi.org/10.1021/nl500238h
Identifiersdoi: 10.1021/nl500238h
e-issn: 1530-6992
issn: 1530-6984
Appears in Collections:(IMN-CNM) Artículos
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