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Type: Artigo de periódico
Title: Study of the optical properties of TeO2-PbO-TiO2 glass system
Author: Cuevas, Raul F.
Paula, Ana M. de
Cesar, Carlos L.
Barbosa, Luiz C.
Alves, Oswaldo L.
Abstract: We describe the preparation and some optical properties of high refractive index TeO2-PbO-TiO2 glass system. Highly homogeneous glasses were obtained by agitating the mixture during the melting process in an alumina crucible. The characterization was done by X-ray diffraction, Raman scattering, light absorption and linear refractive index measurements. The results show a change in the glass structure as the PbO content increases: the TeO4 trigonal bipyramids characteristics of TeO2 glasses transform into TeO3 trigonal pyramids. However, the measured refractive indices are almost independent of the glass composition. We show that third-order nonlinear optical susceptibilities calculated from the measured refractive indices using Lines' theoretical model are also independent of the glass composition.
Subject: tellurite glass
non-linear glasses
high refractive index glass
Editor: Sociedade Brasileira de Química
Citation: Química Nova. Sociedade Brasileira de Química, v. 21, n. 3, p. 361-364, 1998.
Rights: aberto
Identifier DOI: 10.1590/S0100-40421998000300022
Date Issue: 1-Jun-1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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