Observation of intrinsic size effects in the optical response of individual gold nanoparticles
Language
en
Article de revue
This item was published in
Nano Letters. 2005-02-15, vol. 5, n° 3, p. 515
American Chemical Society
English Abstract
The Photothermal Heterodyne Imaging method is used to study for the first time the absorption spectra of individual gold nanoparticles with diameters down to 5 nm. Intrinsic size effects wich result in a broadening of the ...Read more >
The Photothermal Heterodyne Imaging method is used to study for the first time the absorption spectra of individual gold nanoparticles with diameters down to 5 nm. Intrinsic size effects wich result in a broadening of the Surface Plasmon resonance are unambiguously observed. Dispersions in the peak energies and homogeneous widths of the single particle resonances are revealed. The experimental results are analysed within the frame of Mie theory.Read less <
English Keywords
gold nanoparticle
single particle detection
absorption spectroscopy
Mie
intrinsic effect
Origin
Hal imported