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Optical absorption and photoluminescence in Sm3+- and Eu3+-doped rare-earth borate glasses
- Source :
-
Journal of Luminescence . May2005, Vol. 113 Issue 1/2, p121-128. 8p. - Publication Year :
- 2005
-
Abstract
- Abstract: Sm3+- and Eu3+-doped rare-earth borate glasses (Li2O–BaO–La2O3–B2O3) have been fabricated and characterized optically. The density, refractive index, optical absorption, Judd-Ofelt parameters, and spontaneous transition probabilities have been measured, calculated and analyzed. Sm3+ and Eu3+ emit intense reddish-orange and red lights under blue and UV light excitations, respectively. In Sm3+ and Eu3+ co-doped glasses, the excitation wavelength range of Eu3+ emission is broadened owing to the energy transfer from Sm3+ to Eu3+. This broadening makes the Ar+ 488nm wavelength laser a powerful excitation source for Eu3+ fluorescence. The rare-earth doped glasses with various visible emissions are useful for developing new color light sources, fluorescent display devices, UV-sensor and tunable visible lasers. [Copyright &y& Elsevier]
- Subjects :
- *RARE earth metals
*PHOTOLUMINESCENCE
*ENERGY transfer
*LASERS
Subjects
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 113
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 17791128
- Full Text :
- https://doi.org/10.1016/j.jlumin.2004.09.115