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Title

Plasmonic nickel nanoantennas

AuthorsChen, Jianing; Albella, Pablo ; Alonso-González, Pablo ; Bonanni, Valentina; Nogués, Josep ; Dmitriev, Alexandre; Aizpurua, Javier ; Hillenbrand, Rainer
Issue DateAug-2011
PublisherWiley-VCH
CitationSmall 7(16): 2341-2347 (2011)
AbstractThe fundamental optical properties of pure nickel nanostructures are studied by far-field extinction spectroscopy and optical near-field microscopy, providing direct experimental evidence of the existence of particle plasmon resonances predicted by theory. Experimental and calculated near-field maps allow for unambiguous identification of dipolar plasmon modes. By comparing calculated near-field and far-field spectra, dramatic shifts are found between the near-field and far-field plasmon resonances, which are much stronger than in gold nanoantennas. Based on a simple damped harmonic oscillator model to describe plasmonic resonances, it is possible to explain these shifts as due to plasmon damping.
Description7 páginas, 6 figuras.-- El pdf del artículo es la versión post-print.-- et al.
Publisher version (URL)http://dx.doi.org/10.1002/smll.201100640
URIhttp://hdl.handle.net/10261/44025
DOI10.1002/smll.201100640
ISSN1613-6810
E-ISSN1613-6829
Appears in Collections:(CIN2) Artículos
(CFM) Artículos
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