Temperature dependence of the thermo-optical properties in fragile tellurite glasses

Author

Falco, W.F. ; Bannwart, E.S. ; Andrade, L.H.C. ; Lima, S.M. ; Falcão, E.A. ; Steimacher, A. ; Medina, A.N. ; Baesso, M.L. ; de Oliveira, R.C. ; Moraes, J.C.S. ; Yukimitu, K. ; De Araùjo, E.B. ; Catunda, T.

Author_Institution

Grupo de Espectroscopia Optica e Fototermica, Univ. Estadual de Mato Grosso do Sul, Dourados, Brazil

fYear

2005

fDate

12-17 June 2005

Firstpage

333

Abstract

In this work the thermal lens spectrometry (TLS) in function of the temperature was applied in TeO₂-Li₂O (TL) and TeO₂-Li₂O-TiO₂ (TLT) tellurite glasses in order to determine their thermo-optical properties. By fitting the thermal lens transient signal the parameter θ can be obtained, which is proportional to (-P_absds/dT) and is related to the thermal lens signal amplitude, where P_abs is the absorbed power. The ds/dT signal inversion related in this work is the first experimental observation of this phenomenon.

Keywords

lithium compounds; optical glass; spectrometers; tellurium compounds; thermal lensing; thermo-optical devices; titanium compounds; TeO₂-Li₂O-TiO₂; ds-dT signal inversion; fragile tellurite glass; temperature dependence; thermal lens spectrometry; thermal lens transient signal; thermo-optical property; Glass; Lenses; Liquid crystal polymers; Optical polymers; Optical sensors; Polarization; Temperature dependence; Thermal conductivity; Thermal expansion; Thermal lensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on

Print_ISBN

0-7803-8974-3

Type

conf

DOI

10.1109/CLEOE.2005.1568116

Filename

1568116