Thermal lens study of PbO–Bi2O3–Ga2O3–BaO glasses doped with Yb3+
| Autor: | Tomaz Catunda, Luciana R. P. Kassab, S.L. de Oliveira, Maria José Valenzuela Bell, V.D. Del Cacho, D.N. Messias |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
business.industry
Chemistry Doping Analytical chemistry Conductivity Condensed Matter Physics Thermal diffusivity Electronic Optical and Magnetic Materials law.invention Lens (optics) Optics Thermal conductivity law Absorption band Heat generation Materials Chemistry Ceramics and Composites business Absorption (electromagnetic radiation) |
| Zdroj: | Journal of Non-Crystalline Solids. 352:3647-3652 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2006.03.097 |
| Popis: | The aim of this paper is to present a study of the thermal lens technique in quantifying the thermo optical coefficients: d s /d T (optical path change with temperature), thermal diffusivity and conductivity of PbO–Bi 2 O 3 –Ga 2 O 3 –BaO glasses doped with Yb 3+ . The thermal lens results indicate that the heat generation, as a function of the incident wavelength, resembles the absorption band 2 F 7/2 → 2 F 5/2 of Yb 3+ . Thermal diffusivity of 2 × 10 −3 cm 2 /s and thermal conductivity of 4.5 × 10 −3 W/K cm were obtained and are similar to other glasses already reported in previous literature. The results emphasize that the thermal lens technique can be a powerful tool to study the heat generation of new glassy systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect