| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9586118 | Journal of Luminescence | 2005 | 8 Pages |
Abstract
The spectroscopic and fluorescent decay behaviors of Yb3+-doped SiO2-PbO-Na2O-K2O glass is reported in this work. Yb2O3 contents of 1, 1.5 and 2Â mol% are added into the glass. Through the measurement of absorption and fluorescence spectra, and fluorescent decay rate at room temperature and at low temperature (18Â K), it is found that the nonradiative decay rate of Yb3+ ions is mainly determined by the interaction between residual hydroxyl groups and Yb3+ ions. Concentration quenching effect can be omitted in this glass up to the Yb3+ ion concentration of 8.98Ã1020/cm3. Multiphonon decay rate is also very small because of the large energy gap between 2F5/2 and 2F7/2 levels of Yb3+ ions.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
NengLi Dai, Lili Hu, Wei Chen, Georges Boulon, Jianhu Yang, Shixun Dai, Peixiang Lu,