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Effect of Ce3+ on the spectroscopic properties in Er3+ doped TeO2–GeO2–Nb2O5–Li2O glasses
- Source :
-
Journal of Luminescence . Oct2007, Vol. 126 Issue 2, p273-277. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: The Ce3+ ion was introduced into Er3+ doped TeO2–GeO2–Nb2O5–Li2O (TGNL) glass to improve the 1.5μm fluorescence characteristics. As increasing of Ce3+ concentration, the lifetime of Er3+:4I11/2 level is shortened form 360 to 225μs, while the Er3+:4I13/2 level remains unchanged. Accordingly, the upconversion fluorescence (blue, green and red) was quenched. Improved 1.5μm emission is obtained and the reason is ascribed to the increase of nonradiative rate between the 4I11/2 and 4I13/2 level of the Er3+ ions. [Copyright &y& Elsevier]
- Subjects :
- *SPECTROSCOPIC imaging
*OPTICAL materials
*OPTICAL amplifiers
*LUMINESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 126
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 25127611
- Full Text :
- https://doi.org/10.1016/j.jlumin.2006.07.029