Yb3+-doped NaBi(WO4)2 fibre single crystals grown by the micro-pulling down technique and emission spectroscopic characterization

被引：6

作者：

Karek, A.

Lebbou, K.

Diaf, M.

Brenier, A.

Boulon, G.

机构：

[1] Univ Lyon 1, CNRS, UMR 5620, F-69622 Villeurbanne, France

[2] Univ Badji Mokhtar, Dept Phys, Fac Sci, Annaba 23000, Algeria

来源：

MATERIALS RESEARCH BULLETIN | 2007年 / 42卷 / 03期

关键词：

optical materials; chemical synthesis; crystal growth; optical properties;

D O I：

10.1016/j.materresbull.2006.06.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NaBi1-xYbx(WO4)(2) fibres single crystals were successfully grown by micro-pulling down technology (MPD). The Yb3+-doped NaBi(WO4)(2) fibres single crystals have been pulled using MPD technique with controlled diameter and stationary stable growth conditions corresponding to flat crystallization interface with meniscus length equal to the fibre radii and pulling rate range [6-48 turn. h(-1)]. We have determined the monophased field of NaBi1-xYbx(WO4)(2) for x <= 0.3. The lattices parameters decrease as a function of Y3+ substitution in Bi3+ sites. The melt behaviour has been study by DTA/TG analysis. We have found that the stoichiometric compounds NaBi(WO4)(2) melt congruently at 935 degrees C. The fibre diameters varied from 0.5 to 1 mm depending on the capillary die diameter, pulling rate and the molten zone temperature. Complementary Yb3+ spectroscopic characterization in the NaBi(WO4)(2) lattice has been done by IR emission measurements under laser pumping at room temperature. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：532 / 543

页数：12

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