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Effect of B2O3 on luminescence of erbium doped tellurite glasses
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . Feb2007, Vol. 66 Issue 2, p389-393. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: The B2O3 was introduced into the Er3+ doped TeO2–ZnO–Na2O glass to increase the phonon energy of the host. The effect of B2O3 on the non-radiative rate of the 4I11/2 → 4I13/2 transition of Er3+, the lifetime of the 4I11/2 and 4I13/2 levels, the green and red upconversion emissions intensity, and the 4I13/2 → 4I15/2 emission intensity was discussed. The results show that the phonon energy of boro-tellurite glass is close to that of germanate glass and is quite smaller than that of borate glass. The lifetime of 4I11/2 level and the upconversion emissions decrease with increasing B2O3 concentration. The higher OH group concentration presented in the boro-tellurite glass may shorten the lifetime of 4I13/2 level and also reduce the quantum efficiency of 4I13/2 → 4I15/2 emission. The future dehydrating procedures are suggested to enhance the efficiency of amplification at 1.5μm band. [Copyright &y& Elsevier]
- Subjects :
- *BORON
*OXYGEN
*ERBIUM
*TELLURIUM
*PHONONS
*LUMINESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 66
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 23605219
- Full Text :
- https://doi.org/10.1016/j.saa.2006.03.009