Yb3+-doped Gd3Ga5O12 garnet single crystals grown by the micro-pulling down technique for laser application.: Part 2:: Concentration quenching analysis and laser optimization

被引：48

作者：

Guyot, Y

Canibano, H

Goutaudier, C

Novoselov, A

Yoshikawa, A

Fukuda, T

Boulon, G

机构：

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

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

OPTICAL MATERIALS | 2006年 / 28卷 / 1-2期

关键词：

laser crystals; Yb3+ laser ion; GGG garnet host; energy levels; quenching; laser prediction;

D O I：

10.1016/j.optmat.2004.10.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article is following the first part published recently in this journal [S. Chenais, F. Druon, F. Balembois, P. Georges, A. Brenier, G. Boulon, Opt. Mater. 22 (2003) 99]. Yb3+ concentration dependence of the F-2(5/2) excited level experimental decay time in GGG laser crystal was analyzed in order to understand involved concentration quenching mechanisms. Under Yb3+ ion infrared pumping, selftrapping and up-conversion non-radiative energy transfer to rare earth impurities (Er3+, Tm3+) have been observed in visible region and interpreted by a limited diffusion process within the Yb3+ doping ion subsystem towards impurities. OH- quenching centres, Yb2+ ions and color centres may also be involved in such processes but Yb3+ pairs do not seem efficient. Main parameters useful for the optimization of laser potentiality have also been given from a new model which has been published recently. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1 / 8

页数：8

共 23 条

[1] A fundamental self-generated quenching center for lanthanide-doped high-purity solids [J].