Journal
CHEMICAL SCIENCE
Volume 2, Issue 1, Pages 136-140Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0sc00440e
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Funding
- National Science Foundation [CBET-0930074, ECCS-0651079]
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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.
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