Observation of Intrinsic Size Effects in the Optical Response of Individual Gold Nanoparticles
Year: 2005
Type: article
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 that 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 analyzed within the frame of Mie theory.
Source: Nano Letters
DOI: 10.1021/nl050062t
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1989948313
