Influence of post-treatment on optical properties of Sc:Ce:Cu:LiNbO3 crystals

被引：2
|
作者：
Ma, Decai
Wang, Biao [1 ]
Wang, Rui
Wang, Hai
Liu, Hongcheng
Li, Qingkun
机构：
[1] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
[2] Sun Yat Sen Univ, Inst Optoelect & Funct Composite Mat, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Phys Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
[4] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2007年 / 21卷 / 04期
关键词：
Sc : Ce : Cu : LiNbO3; post-treatment; photorefractive properties;
D O I：
10.1142/S0217984907012499
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The congruent Sc(3 mol%):Ce:Cu:LiNbO3 single crystals were grown by the Czochralski method and three kinds of different samples were prepared by proper reduction or oxidation post-treatment processes. The extrinsic defect structures of samples were determined by infrared transmittance spectra. Two-wave coupling and light induced scattering experiments were used to measure the photorefractive properties. It is found that the reduction treatment made erasure time and diffraction efficiency decrease, but light-induced scattering resistance increase; the inverse case occurred with oxidation treatment. Analysis indicated that photoconductivity change was responsible for photorefractive properties.
引用
收藏
页码：207 / 214
页数：8
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