Absorption efficiency of gold nanorods determined by quantum dot fluorescence thermometry

In this work quantum dot fluorescence thermometry, in combination with double-beam confocal microscopy, has been applied to determine the thermal loading of gold nanorods when subjected to an optical excitation at the longitudinal surface plasmon resonance. The absorbing/heating efficiency of low (≈...

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Bibliographic Details
Published in:Applied physics letters 2012-05, Vol.100 (20), p.201110-201110-4
Main Authors: Maestro, L. M., Haro-González, P., Coello, J. G., Jaque, D.
Format: Article
Language:English
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Summary:In this work quantum dot fluorescence thermometry, in combination with double-beam confocal microscopy, has been applied to determine the thermal loading of gold nanorods when subjected to an optical excitation at the longitudinal surface plasmon resonance. The absorbing/heating efficiency of low (≈3) aspect ratio gold nanorods has been experimentally determined to be close to 100%, in excellent agreement with theoretical simulations of the extinction, absorption, and scattering spectra based on the discrete dipole approximation.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4718605