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

页码：55 / 58

页数：4

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