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Spectral properties and charge transfer luminescence of Yb3+:Gd3Ga5O12 (Yb:GGG) crystal
- Source :
-
Journal of Crystal Growth . Apr2005, Vol. 277 Issue 1-4, p186-191. 6p. - Publication Year :
- 2005
-
Abstract
- Abstract: The Yb (10%):GGG and Yb (30%): GGG crystals have been grown by the Czochralski method. The chemical compositions are: Yb1.07Gd1.74Ga5.19O12 and Yb0.33Gd2.47Ga5.2O12. The absorption and emission spectra of Yb:GGG crystal at room temperature have been measured. The spectroscopic parameters of Yb:GGG and Yb:YAG have been compared. Optical absorption spectra of Yb:GGG show 4f–4f transitions related to Gd3+ ion around 300nm, and also an onset of charge transfer (CT) transitions from oxygen ligands to Gd3+ or Yb3+ cations below 240nm.The CT absorption of Yb3+ is largely overlapped by that of Gd3+ ions. [Copyright &y& Elsevier]
- Subjects :
- *CRYSTALS
*TEMPERATURE
*SPECTRUM analysis
*IONS
Subjects
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 277
- Issue :
- 1-4
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 17640239
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2004.12.111