Photothermal Heterodyne Imaging of Individual Metallic Nanoparticles: Theory versus Experiments
Language
en
Article de revue
This item was published in
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2006-01-20, vol. 73, p. 045424
American Physical Society
English Abstract
We present the theoretical and detailed experimental characterizations of Photothermal Heterodyne Imaging. An analytical expression of the photothermal heterodyne signal is derived using the theory of light scattering from ...Read more >
We present the theoretical and detailed experimental characterizations of Photothermal Heterodyne Imaging. An analytical expression of the photothermal heterodyne signal is derived using the theory of light scattering from a fluctuating medium. The amplitudes of the signals detected in the backward and forward configurations are compared and their frequency dependences are studied. The application of the Photothermal Heterodyne detection technique to the absorption spectroscopy of individual gold nanoparticles is discussed and the detection of small individual silver nanoparticles is demonstrated.Read less <
English Keywords
Single Nano-objects Detection
Metal Nanoparticle Spectroscopy
Photothermal effect
Light Scattering Theory
Origin
Hal imported