Thermal nonlinear refraction in the dye-doped sol-gel xTiO2 • (100-x)SiO2 system

被引:17
作者
Cason, M
Bersani, D
Antonioli, G
Lottici, PP
Montenero, A
Cavalli, M
机构
[1] Univ Parma, Dipartimento Fis, Ist Nazl Fis Mat, I-43100 Parma, Italy
[2] Univ Parma, Dipartimento Chim, I-43100 Parma, Italy
关键词
optical non-linearity; sol-gel; Z-scan; thermal lens; thermal diffusivity; disperse orange 3; silica-titania system;
D O I
10.1016/S0925-3467(98)00073-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The build-up time of the thermal lens effect induced by a Gaussian beam in the DO3-doped sol-gel system xTiO(2).(100 - x)SiO2 at different compositions, both in the liquid and gel phases has been measured in a Z-scan geometry. While the pure titania samples show a minimum of the thermal diffusivity, a maximum is found for x approximate to 30. The sol to gel transformation leads to an increase of the build-up times at all compositions. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:447 / 452
页数:6
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