Optical absorption spectra of LiNbO3, Fe:LiNbO3, and Zn:Fe:LiNbO3 single crystals grown by Bridgman method

被引：8

作者：

Xia, HP ^{[1
]}

Zeng, XL ^{[1
]}

Wang, JH ^{[1
]}

Zhang, JL ^{[1
]}

Xu, J ^{[1
]}

Zhang, YP ^{[1
]}

Nie, QH ^{[1
]}

机构：

[1] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Peoples R China

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2004年 / 39卷 / 04期

关键词：

single crystal; lithium niobate; doped lithium niobate; optical absorption spectra; Bridgman method; Fe (2+) ion; Zn2+ ion;

D O I：

10.1002/crat.200310192

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The optical absorption spectra of LiNbO3 (LN), Fe:LiNbO3 (Fe:LN), and Zn:Fe:LiNbO3 (Zn:Fe:LN) single crystals grown by Bridgman method were measured and compared. The absorption characteristics of the samples and the effects of growth process conditions on the absorption spectra were investigated. The Fe, Zn and Li concentrations in the crystals were analyzed by inductively coupled plasma (ICP) spectrometry. The results indicated that the overall Fe ion and Fe2+ concentration in Fe:LN and Zn:Fe:LN crystals increased along the growing direction. The incorporation of ZnO in Fe:LN crystal induced increase of Fe2+ in the crystal. Among Fe-doped and Zn:Fe-codoped LN single crystals, 3 mol% ZnO doped Fe:LN had a biggest change of Fe2+ ion concentration from bottom to top part of crystal. The effects of technical conditions (atmosphere and thermal history) on Fe2+ ion concentration were discussed. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：337 / 342

页数：6

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