Optical spectroscopy of La3Ga5SiO14 disordered crystals doped with Fe3+ ions

被引：19
|
作者：
Alyabyeva, L. [1 ]
Burkov, V. [1 ]
Mill, B. [2 ]
机构：
[1] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia
[2] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
来源：
OPTICAL MATERIALS | 2015年 / 43卷
基金：
俄罗斯基础研究基金会;
关键词：
Circular dichroism; Langasite; Optical spectroscopy; Fe3+; Disordered structure; La3Ga5SiO14; CIRCULAR-DICHROISM SPECTRA; LANGASITE FAMILY CRYSTALS; SUPERPOSITION MODEL; ABSORPTION; LUMINESCENCE; EPR; TRANSITION; FE-3+; FE2+;
D O I：
10.1016/j.optmat.2015.02.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The circular dichroism, absorption and luminescence spectra of langasite (La3Ga5SiO14) doped with iron ions (Fe) are investigated at temperatures T of 300 and 8 K. Analysis of the data obtained reveals the Fe ions are trivalent. The Fe3+ impurity ions substitute Ga3+ ions and occupy 3f tetrahedral sites. Luminescence from the T-4(1) excited state of the dopant was detected at 8 K. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：55 / 58
页数：4
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