Optical absorption and OH- transmission spectra in Mg:Er:LiNbO3 crystals

被引：3
|
作者：
Zhen, XH
Li, Q [1 ]
Xu, YH
机构：
[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China
[2] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2006年 / 20卷 / 08期
基金：
中国博士后科学基金;
关键词：
Mg : Er : LiNbO3 crystal; spectrum; defect structure;
D O I：
10.1142/S0217984906010433
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Mg:Er:LiNbO3 crystals were grown by the Czochralski method. Their UV-Vis absorption edges and OH- transmission spectra were measured in terms of the defect structure. The absorption edges shift towards a shorter wavelength with increasing Mg concentration. The dependence of the shift mechanism of the absorption edge on the defect structure was discussed in detail. The OH- absorption bands shift from 3486 cm(-1) to 3535 cm(-1) when the Mg concentration exceeds a threshold value. It is considered that the 3535 cm(-1) absorption band corresponds to the (MgNb)(3-)-OH- complexes.
引用
收藏
页码：439 / 444
页数：6
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