Growth and characterization of LiSrGaF6 single crystal

被引：33

作者：

Bensalah, A ^{[1
]}

Shimamura, K ^{[1
]}

Nakano, K ^{[1
]}

Fujita, T ^{[1
]}

Fukuda, T ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2001年 / 231卷 / 1-2期

关键词：

distribution coefficient; optical properties; thermal expansion; Czochralski method; growth from melt; lithium compounds;

D O I：

10.1016/S0022-0248(01)01440-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The growth of undoped and Ce-doped LiSrGaF6 (LiSGF) single crystals was carried out in a Czochralski system under CF4 atmosphere. LiSGF and Ce-doped LiSrGaF6 (Ce: LiSGF) single crystals of 1 in diameter were obtained and characterized. The reasons for the limited size of crack-free crystals were investigated. The distribution coefficient of Cc was determined to be 0.22. Absorption and fluoresence under excitation by the fourth harmonic of Nd: YAG laser were measured and compared with those of other colquiriite- type fluorides such as LiCaAlF6 and LiSrAlF6. The absorption edge of LiSGF was determined to be 128 nm, making it a good candidate as an optical window material. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：143 / 147

页数：5

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