Photorefractive properties of potassium lithium niobate doped with copper

被引：6
|
作者：
Xu, YH
Xu, WS [1 ]
Xu, SW
Wang, R
Chen, XJ
机构：
[1] Harbin Inst Technol, Dept Elect Sci & Technol, Harbin 15001, Peoples R China
[2] Harbin Inst Technol, Dept Appl Chem, Harbin 15001, Peoples R China
[3] Harbin Inst Technol, Elect Opt Res Ctr, Harbin 150001, Peoples R China
[4] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
来源：
OPTIK | 2003年 / 114卷 / 02期
关键词：
Cu : KLN crystal; photorefractive porperties; lattice constants;
D O I：
10.1078/0030-4026-00225
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Potassium lithium niobate doped with copper (Cu:KLN) were grown by the Czochralski method for the first time. The structure of Cu:KLN was measured by the x-ray powder diffraction method, and its lattice constraints were obtained. The position of copper ions in KLN crystals was determined. The exponential gain coefficient, response time anmd erasure time were measured. It was found that the exponential gain coefficient of Cu:KLN is 10.5 cm(-1,) as two times high as that of KLN, and its response time of 1.53 s is one order of magnitude shorter than that of Cu:LiNbO3. The type of light exciting carriers in Cu:KLN has been investigated. The result showed that electron acts the main role Cu:KLN.
引用
收藏
页码：81 / 84
页数：4
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