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Title: | Self-sifting of chain plasmons: the complex optics of Au nanoparticle clusters |
Authors: | Herrmann, Lars O.; Valev, Ventsislav K.; Aizpurua, Javier ![]() |
Issue Date: | 2013 |
Publisher: | Optical Society of America |
Citation: | Optics Express 21(26): 32377-32385 (2013) |
Abstract: | The strong enhancement of electrical fields in subnanometer gaps of self-Assembled gold nanoparticle clusters holds great promise for large scale fabrication of sensitive optical sensing substrates. Due to the large number of involved nanoparticles, however, their optical response is complex and not easily accessible through numerical simulations. Here, we use hyperspectral supercontinuum spectroscopy to demonstrate how confined optical modes of well defined energies are supported by different areas of the cluster. Due to the strong resonant coupling in those regions, the cluster essentially acts as a nanoscale optical sieve which sorts incident light according to its wavelength. © 2013 Optical Society of America. |
Publisher version (URL): | http://dx.doi.org/10.1364/OE.21.032377 |
URI: | http://hdl.handle.net/10261/102391 |
DOI: | http://dx.doi.org/10.1364/OE.21.032377 |
Identifiers: | doi: 10.1364/OE.21.032377 issn: 1094-4087 |
Appears in Collections: | (CFM) Artículos |
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Self-sifting of chain.pdf | 4,31 MB | Adobe PDF | ![]() View/Open |
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