Efficient energy transfer between Ce3+/Cr3+ and Nd3+ ions in transparent Nd/Ce/Cr:YAG ceramics

被引：28
|
作者：
Samuel, P. [1 ,4 ]
Kumar, G. A. [2 ]
Yanagitani, Takagimi [3 ]
Yagi, Hideki [3 ]
Ueda, Ken Ichi [4 ]
Babu, S. Moorthy [5 ]
机构：
[1] BS Abdul Rahman Univ, Dept Phys, Madras 600048, Tamil Nadu, India
[2] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA
[3] Konoshima Chem Co Ltd, Konoshima Takuma Works, Mitoya, Kagawa 7691103, Japan
[4] Univ Electrocommun, Inst Laser Sci, Chofu, Tokyo 1828585, Japan
[5] Anna Univ, Ctr Crystal Growth, Madras 600025, Tamil Nadu, India
来源：
OPTICAL MATERIALS | 2011年 / 34卷 / 01期
关键词：
Transparent ceramics; Sintering; Spectroscopy; Optical properties; DOPED Y3AL5O12 CERAMICS; SOLID-STATE LASERS; OPTICAL-PROPERTIES; YAG CERAMICS; EMISSION; CR; PERFORMANCE;
D O I：
10.1016/j.optmat.2011.09.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports the spectroscopic and laser characteristics of transparent ceramics of YAG:Nd co-doped with Ce and Cr. The ceramics were prepared by advanced ceramic techniques and showed more than 85% of transparency. Diode pumped laser oscillation performed at different output coupler transmissions (T) showed that a maximum slope efficiency of 16% was achieved for T = 3%. The cross energy transfer mechanism under violet laser diode pumping has been analyzed and the possible energy transfer mechanisms have been proposed using the various energy levels of the dopant ions. The emission lifetimes of the dopant ions at two different concentrations have also been found. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：303 / 307
页数：5
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