Optical absorption of AlF3-YF3-PbF2-MF2-MgF2 (M= Ca, Sr and Ba) glasses doped with chromium ions

被引：0
|
作者：
Benhamideche, C. [2 ]
Boutarfaia, A. [3 ]
Poulain, Marcel [1 ]
机构：
[1] Univ Rennes 1, UMR Sci Chim, F-35042 Rennes, France
[2] Univ Skikda, Inst Sci Fondamentales, Skikda, Algeria
[3] Univ Biskra, Lab Chim Appl, R P Biskra 07000, Algeria
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2009年 / 3卷 / 04期
关键词：
Fluoride glass; Aluminium fluoride; Optical properties; ZIRCONIUM FLUORIDE GLASS; FLUOROZIRCONATE GLASS; SPECTROSCOPY; CR3+; LUMINESCENCE; TRANSITIONS; STATE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fluoroaluminate glasses in the AlF3-YF3-PbF2-CaF2-MgF2, AlF3-YF3-PbF2-SrF2-MgF2 and AlF3-YF3-PbF2-BaF2-MgF2 systems have been doped with 0.2 and 0.3 mol % CrF3 and their optical absorption has been studied. The absorption spectrum displays two strong and broad bands corresponding to the electronic transitions (4)A(2g), (F-4) double right arrow T-4(2g) (F-4) and (4)A(2g) (F-4) double right arrow T T-4(1g) (F-4) of the Cr3+ ions in a nearly octahedral environment. Crystal field and Raccah parameters were determined. They depend on the nature of the earth alkali cation and also on chromium concentration, which suggests that local field and covalent character also change.
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页码：317 / 319
页数：3
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