Nonvolatile photorefractive properties in triply doped stoichiometric Mg:Fe:Mn:LiTaO3 crystals

被引：1
|
作者：
Sun Ting [1 ]
Zhang Xiao-Dong [2 ]
Sun Liang [3 ,4 ]
Wang Rui [1 ]
机构：
[1] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[3] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
[4] Yibin Univ, Sch Phys & Elect Engn, Yibin 644000, Peoples R China
来源：
CHINESE PHYSICS B | 2014年 / 23卷 / 01期
基金：
中国国家自然科学基金;
关键词：
photorefractive material; LiTaO3; crystal; nonvolatile holography; blue photorefraction; LITAO3; SINGLE-CRYSTALS; LITHIUM TANTALATE; OPTICAL-PROPERTIES; FE; GROWTH; STORAGE; ZN; MG;
D O I：
10.1088/1674-1056/23/1/014204
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have grown triply doped Mg:Fe:Mn:LiTaO3 crystals with near stoichiometry using the top seeded solution growth technique. The defect structure was investigated by infrared absorption spectra and Curie temperature. Using a blue laser as the source, excellent photorefractive properties were obtained. Nonvolatile holographic storage properties were investigated using the dual wavelength technique. We got a very high fixed diffraction efficiency and nonvolatile holographic storage sensitivity. The blue light has more than enough energy to excite holes of deep (Mn) and shallow (Fe) trap centers with the same phase, which enhance dramatically the blue photorefractive properties and the nonvolatile holographic storage. Mg2+ ion is no longer damage resistant at blue laser, but enhances photorefractive characteristics.
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页数：5
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