Spectroscopic and crystal field studies of (Ce,Gd)SC3 (BO3)4:Cr3+ crystals

被引：8

作者：

Brik, M. G.

Lebedev, V. A.

Stroganova, E. V.

机构：

[1] Kyoto Univ, Fukui Inst Fundamental Chem, Sakyo Ku, Kyoto 606, Japan

[2] Kuban State Univ, Expt Phys Dept, Krasnodar 350040, Russia

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2007年 / 68卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

optical materials; crystal fields; optical properties; CR3+-DOPED LASC3(BO3)(4); LASER PERFORMANCE; CHROMIUM; IONS;

D O I：

10.1016/j.jpcs.2007.05.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Complex spectroscopic studies of (Ce,Gd)Sc-3(BO3)(4):Cr3+ (CSB:Cr3+) crystals (crystal growth, absorption and luminescence spectroscopy, crystal field calculations, analysis of the radiative and non-radiative decays) are presented. The main results of the paper include calculations of crystal field parameters and energy level scheme for Cr3+ at distorted octahedral Sc3+ sites, evaluation of the Huang-Rhys factor, effective phonon frequency, zero-phonon line energy, and parameters of radiative and non-radiative decays. Comparison with experimental results and other literature data is discussed. A very unusual value of the frequency factor (related to the non-radiative processes) is explained as being due to heterodesmic nature of chemical bonds in the CSB crystal. Cr3+-doped CSB crystals (with Cr3+ concentration 5.1 x 10(19)cm(-3) or 1%) are suggested as promising candidates for potential applications as active media for solid state lasers. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1796 / 1804

页数：9

共 39 条

[11] Cr3+ luminescence quenching in stoichiometric lithium niobate crystals [J].