A hybrid plasmonic-photonic nanodevice for label-free detection of a few molecules

Francesco De Angelis; Maddalena Patrini; Gobind Das; Ivan Maksymov; Matteo Galli; Luca Businaro; Lucio Claudio Andreani; Enzo Di Fabrizio

doi:10.1021/nl801112e

A hybrid plasmonic-photonic nanodevice for label-free detection of a few molecules

Francesco De Angelis, Maddalena Patrini, Gobind Das, Ivan Maksymov, Matteo Galli, Luca Businaro, Lucio Claudio Andreani, Enzo Di Fabrizio

Research output: Contribution to journal › Article › peer-review

225 Citations (Scopus)

Abstract

Noble metal nanowaveguides supporting plasmon polariton modes are able to localize the optical fields at nanometer level for high sensitivity biochemical sensing devices. Here we report on the design and fabrication of a novel photonic-plasmonic device which demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds. In any case, we determine the Raman scattering signal enhancement and the device detection limits that reach a number of molecules between 10 and 250. The device can be straightforwardly integrated in a scanning probe apparatus with the possibility to match topographic and label-free spectroscopic information in a wide range of geometries.

Original language	English
Pages (from-to)	2321-2327
Number of pages	7
Journal	Nano Letters
Volume	8
Issue number	8
DOIs	https://doi.org/10.1021/nl801112e
Publication status	Published - Aug 2008

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10.1021/nl801112e

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abstract = "Noble metal nanowaveguides supporting plasmon polariton modes are able to localize the optical fields at nanometer level for high sensitivity biochemical sensing devices. Here we report on the design and fabrication of a novel photonic-plasmonic device which demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds. In any case, we determine the Raman scattering signal enhancement and the device detection limits that reach a number of molecules between 10 and 250. The device can be straightforwardly integrated in a scanning probe apparatus with the possibility to match topographic and label-free spectroscopic information in a wide range of geometries.",

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AU - De Angelis, Francesco

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AU - Galli, Matteo

AU - Businaro, Luca

AU - Andreani, Lucio Claudio

AU - Di Fabrizio, Enzo

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N2 - Noble metal nanowaveguides supporting plasmon polariton modes are able to localize the optical fields at nanometer level for high sensitivity biochemical sensing devices. Here we report on the design and fabrication of a novel photonic-plasmonic device which demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds. In any case, we determine the Raman scattering signal enhancement and the device detection limits that reach a number of molecules between 10 and 250. The device can be straightforwardly integrated in a scanning probe apparatus with the possibility to match topographic and label-free spectroscopic information in a wide range of geometries.

AB - Noble metal nanowaveguides supporting plasmon polariton modes are able to localize the optical fields at nanometer level for high sensitivity biochemical sensing devices. Here we report on the design and fabrication of a novel photonic-plasmonic device which demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds. In any case, we determine the Raman scattering signal enhancement and the device detection limits that reach a number of molecules between 10 and 250. The device can be straightforwardly integrated in a scanning probe apparatus with the possibility to match topographic and label-free spectroscopic information in a wide range of geometries.

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A hybrid plasmonic-photonic nanodevice for label-free detection of a few molecules

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