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Optical behavior of RF sputtered Au-TiO2 thin cermet films, influence of the goldparticles size and concentration

Published online by Cambridge University Press:  15 August 2000

S. Liberman ,
X. Quélin ,
J. Sztern ,
Y. Dumont ,
A. Etcheberry ,
A. Bourdon  and
P. Gadenne
S. Liberman
Affiliation:
Laboratoire de Magnétisme et d'Optique de Versailles (UMR CNRS 8634), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
X. Quélin*
Affiliation:
Laboratoire de Magnétisme et d'Optique de Versailles (UMR CNRS 8634), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
J. Sztern
Affiliation:
Laboratoire de Magnétisme et d'Optique de Versailles (UMR CNRS 8634), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
Y. Dumont
Affiliation:
Laboratoire de Magnétisme et d'Optique de Versailles (UMR CNRS 8634), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
A. Etcheberry
Affiliation:
Institut de Réactivité, Électrochimie et Microporosité (UMR CNRS C0173), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
A. Bourdon
Affiliation:
Laboratoire des Milieux Désordonnés et Hétérogènes (UMR CNRS 7603), Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France
P. Gadenne
Affiliation:
Laboratoire de Magnétisme et d'Optique de Versailles (UMR CNRS 8634), Université de Versailles Saint Quentin, 45 avenue des États-Unis, 78035 Versailles Cedex, France
*
[email protected]
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Abstract

We study the optical behavior of Au-TiO2 thin cermet films, the gold volume fraction of which is varied over the range 10−3 to 8 × 10−2. In this low concentration range, it is mainly governed by the metallic particles size, which very much depends on the deposition substrate temperature and the annealing time and temperature. The samples structure and morphology are characterized by several complementary techniques. Spectrophotometric measurements at quasi-normal incidence have been performed in visible and near infrared regions. Using a short pulse Nd:YAG laser, we also look for nonlinear optical behavior due to the enhancement of the electromagnetic field close to the surface plasmon resonance of the metallic grains.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 11 , Issue 2 , August 2000 , pp. 91 - 95
Copyright
© EDP Sciences, 2000

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