Correlation between the morphological characteristics and extinction spectra of sodium nanoparticles and modification of nanoparticles through photoatomic emission

The morphological characteristics of ensembles of metal nanoparticles on transparent dielectric substrates have been studied by the methods of hole-burning and linear absorption spectroscopy. The size and shape of particles were changed under the exposure to the optical radiation that induced photod...

Full description

Saved in:
Bibliographic Details
Published in:Optics and spectroscopy 2007-05, Vol.102 (5), p.728-733
Main Authors: Vartanyan, T. A., Leonov, N. B., Logunov, A. E., Przhibel’skiĭ, S. G., Khromov, V. V.
Format: Article
Language:English
Subjects:
Absorption spectra
Diffusion
Ellipsoids
Morphology
Nanoparticles
Optical radiation
Photodetachment
Plasma oscillations
Spectrum analysis
Substrates
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The morphological characteristics of ensembles of metal nanoparticles on transparent dielectric substrates have been studied by the methods of hole-burning and linear absorption spectroscopy. The size and shape of particles were changed under the exposure to the optical radiation that induced photodetachment of atoms and their photostimulated diffusion over the surface of nanoparticles. The correlation between holes burned in different absorption bands is explained by the morphological features of the island film. The relaxation times of individual modes of collective plasma oscillations and the shape parameters of particles modeled by three-axial ellipsoids have been determined.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X0705013X