Preparation and characterization of Yb:Y3Al5O12 fiber crystals

被引:29
作者
Chani, VI
Yoshikawa, A
Kuwano, Y
Inaba, K
Omote, K
Fukuda, T
机构
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Interdisciplinary Res Ctr, Aoba Ku, Sendai, Miyagi 9808578, Japan
[3] Rigaku Corp, Xray Res Lab, Akishima, Tokyo 196, Japan
关键词
optical materials; oxides; crystal growth; X-ray diffraction; optical properties;
D O I
10.1016/S0025-5408(00)00362-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A micro-pulling-down process employing Ir crucibles and RF heating has been used to grow single crystal fibers of Yb-doped Y3Al5O12 garnet (YAG). Single crystals ranging up to 550 mm in length have been produced. The fibers were about 1 mm in diameter and were seeded-grown in the <111> direction. Results of X-ray rocking curve measurements and transmittance data were used to discuss the crystalline perfection of the fibers. The effective segregation coefficient of Yb3+ in the process described is reported to be slightly less than 1.0 at a growth rate of about 5 mm/min. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1615 / 1624
页数:10
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