Structural and nonlinear optical characterizations of tellurium oxide-based glasses: TeO{sub 2}-BaO-TiO{sub 2}

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.1997.7499· OSTI ID:569701

Sabadel, J C; Armand, P; Cachau-Herreillat, D ^[1]

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1. LPMC, Montpellier (France); and others

The structure of the pseudo ternary TeO{sub 2}-TiO{sub 2}BaO glasses was investigated by Raman and infrared spectroscopies. In the TeO{sub 2}-BaO system, glasses with low BaO content have a continuous network constructed by sharing corners of TeO{sub 4} trigonal bipyramids and TeO{sub 3+1} polyhedra having nonbridging oxygen atoms. In glasses containing 40% mol BaO, isolated structural units such as TeO{sub 3} are formed. However, TiO{sub 2} insertion can inhibit this structural change and favor a continuous network. We discuss the characterization of nonlinear optical process in these materials using Z scan technique. The highest nonlinear absorption values are obtained for titanium tellurite glasses emphasising the particularly significant role of the structural units in the optical response.

• OSTI ID: 569701
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 132; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
NONLINEAR OPTICS
OPTICAL PROPERTIES
PHASE STUDIES
TELLURIUM OXIDES
TITANIUM OXIDES