Photothermal Heterodyne Imaging of Individual Metallic Nanoparticles: Theory versus Experiments
Langue
en
Article de revue
Ce document a été publié dans
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2006-01-20, vol. 73, p. 045424
American Physical Society
Résumé en anglais
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 ...Lire la suite >
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.< Réduire
Mots clés en anglais
Single Nano-objects Detection
Metal Nanoparticle Spectroscopy
Photothermal effect
Light Scattering Theory
Origine
Importé de halUnités de recherche