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Issue 1, 2011
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Nanoscale spectroscopy with optical antennas

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Abstract

Optical antennas made of gold nanoparticles are used to enhance the spectroscopic response of single molecules. With a scannable optical half-wave antenna in the form of a gold nanorod we achieve a spatial resolution of 20nm in fluorescence imaging. We explore simultaneous fluorescence and Raman enhancement of dye molecules in the junction of two gold nanoparticles and find similar enhancements as a function of interparticle distance for both fluorescence and Raman scattering. We compare our results with theoretical predictions and provide possible explanations.

Graphical abstract: Nanoscale spectroscopy with optical antennas

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Publication details

The article was received on 15 Aug 2010, accepted on 17 Sep 2010 and first published on 15 Oct 2010


Article type: Edge Article
DOI: 10.1039/C0SC00440E
Citation: Chem. Sci., 2011,2, 136-140

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    Nanoscale spectroscopy with optical antennas

    P. Bharadwaj, R. Beams and L. Novotny, Chem. Sci., 2011, 2, 136
    DOI: 10.1039/C0SC00440E

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