Improved blue photorefractive properties of near-stoichiometric LiNbO3:Mn:Fe:Zr crystal

被引：5
|
作者：
Xu, Chao [1 ]
Yang, Chunhui [1 ]
Mo, Yang [2 ]
Wang, Yijie [2 ]
Sun, Liang [1 ]
Cao, Liangcai [3 ]
Xu, Yuheng [1 ]
机构：
[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
[2] Harbin Univ Sci & Technol, Sch Appl Sci, Harbin 150080, Peoples R China
[3] Tsinghua Univ, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 2010年 / 45卷 / 11期
基金：
中国国家自然科学基金;
关键词：
near-stoichiometric LiNbO3:Mn:Fe:Zr crystal; defect structure; blue photorefractive properties; OPTICAL-DAMAGE RESISTANCE; LITHIUM-NIOBATE CRYSTALS; DEFECT STRUCTURE; RATIOS; TIME;
D O I：
10.1002/crat.201000383
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Near-stoichiometric LiNbO3 single crystal tri-doped with ZrO2, MnO and Fe2O3 was grown from Li-riched melt by Czochralski method. The defect structures and composition of these crystals were analyzed by means of ultraviolet-visible and infrared transmittance spectra. The appearance of 3466 cm(-1) peak in infrared spectra showed that the crystal grown from Li-riched melt was near stoichiometric. The photorefractive properties at the wavelength of 488 nm and 633 nm were investigated with two-beam coupling experiment, respectively. The experimental results showed that the response speed and sensitivity were enhanced significantly and the high diffraction efficiency was obtained at 488 nm wavelength. This manifested that near-stoichiometric LiNbO3:Mn:Fe:Zr crystal was an excellent candidate for holographic storage. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1123 / 1126
页数：4
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