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Optical properties of Nd3+:NaLa (WO4)2 single crystal

Authors :
Wei, Yanping
Tu, Chaoyang
Wang, Hongyan
Yang, Fugui
Jia, Guohua
You, Zhenyu
Lu, Xiuai
Li, Jianfu
Zhu, Zhaojie
Wang, Yan
Source :
Optical Materials. Aug2007, Vol. 29 Issue 12, p1653-1657. 5p.
Publication Year :
2007

Abstract

Abstract: Nd3+-doped NaLa(WO4)2 single crystal with a dimension of ∅20mm×40mm and a good optical quality was grown by Czochralski method. The polarized absorption spectra and emission spectra were measured at room temperature. The absorption cross-section and emission cross-section were presented. The Judd–Ofelt theory, extended to anisotropic system, has been applied to evaluate the intensity parameters Ω t (t =2,4,6), radiative transition rates A, radiative lifetimes τ R and fluorescent branching ratios β. The calculated radiative lifetime was compared with the experiment data for the 4F3/2 emitting level. All spectral features are strongly affected by an inhomogeneous broadening connected with the ‘disordered crystal’ character of the title compound. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
09253467
Volume :
29
Issue :
12
Database :
Academic Search Index
Journal :
Optical Materials
Publication Type :
Academic Journal
Accession number :
25490455
Full Text :
https://doi.org/10.1016/j.optmat.2006.08.013