Gap-mode Plasmonic Nanocavity
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CitationRussell, Kasey J., and Evelyn L. Hu. 2010. Gap-mode plasmonic nanocavity. Applied Physics Letters 97, no. 16: 163115.
AbstractHere we describe the fabrication and characterization of a plasmonic nanocavity formed in the narrow gap between a Ag nanowire and a flat Ag substrate. The fluorescence spectrum of nanocrystals within the gap was strongly modified by the cavity modes, showing peaks of position and width (Q ∼ 30–60) in quantitative agreement with numerical calculations. At gap spacings of ∼ 15 nm, the noncavity background fluorescence is largely quenched by the Ag substrate, while the modal fluorescence remains strong, indicating that gap-type structures are more robust to fluorescence quenching.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:11005282
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