Detection and Spectroscopy of Gold Nanoparticles Using Supercontinuum White Light Confocal Microscopy
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- 15 July 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 93 (3) , 037401
- https://doi.org/10.1103/physrevlett.93.037401
Abstract
We combine confocal microscopy using supercontinuum laser illumination and an interferometric detection technique to identify single nanoparticles of diameter below 10 nm. Spectral analysis of the signal allows us to record the plasmon resonance of a single nanoparticle. Our results hold great promise for fundamental studies of the optical properties of single metal clusters and for their use in biophysical applications.Keywords
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