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26 August 2005 Optical detection and spectroscopy of single metal nanoparticles
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Abstract
Photothermal Heterodyne Imaging (PHI) is a highly sensitive optical detection method of individual absorptive nano-objects. It can be applied to absorption spectroscopy measurements Surface Plasmon Resonance spectra of individual gold nanoparticules with diameters down to 5nm were recorded. Intrinsic size effects which result in a broadening of the Resonance are unambiguously observed and analyzed within the frame of Mie theory. Preliminary results obtained with silver nanoparticles are also presented.
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S. Berciaud, D. Lasne, G. A. Blab, Ph. Tamarat, L. Cognet, and B. Lounis "Optical detection and spectroscopy of single metal nanoparticles", Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59271B (26 August 2005); https://doi.org/10.1117/12.621174
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