OH^- absorption and nonvolatile holographic storage properties in Mg:Ru:Fe:LiNbO_3 crystal as a function of Mg concentration 被引量：1

OH^- absorption and nonvolatile holographic storage properties in Mg:Ru:Fe:LiNbO_3 crystal as a function of Mg concentration

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摘要 Mg：Ru：Fe：LiN-bO3 crystals with various concentrations of MgO （in mole） and fixed content of RuO2 and Fe203 （in mass） are grown with the Czochralski method from the congruent melt. Their infrared transmission spectra are mea- sured and discussed to investigate the defect structure. With the increase of Mg2＋ concentration the blue nonvolatile holographic storage capability is enhanced. The nonvolatile holographic storage properties of dual-wavelength recording of Mg（7 mol%）：Ru：Fe：LiNbO3 nonvolatile diffraction efficiency, response time, and nonvolatile sensitivity reach 59.8%, 70 s, and 1.04 cm/J, respectively. Comparing Mg（7 mol%）：Ru：Fe：LiNbO3 with Ru：Fe：LiNbO3 crystal, the response time is shortened apparently. The nonvolatile diffraction efficiency and sensitivity are raised largely. The mechanism in blue photorefractive nonvolatile holographic storage is discussed. Mg：Ru：Fe：LiN-bO3 crystals with various concentrations of MgO （in mole） and fixed content of RuO2 and Fe203 （in mass） are grown with the Czochralski method from the congruent melt. Their infrared transmission spectra are mea- sured and discussed to investigate the defect structure. With the increase of Mg2＋ concentration the blue nonvolatile holographic storage capability is enhanced. The nonvolatile holographic storage properties of dual-wavelength recording of Mg（7 mol%）：Ru：Fe：LiNbO3 nonvolatile diffraction efficiency, response time, and nonvolatile sensitivity reach 59.8%, 70 s, and 1.04 cm/J, respectively. Comparing Mg（7 mol%）：Ru：Fe：LiNbO3 with Ru：Fe：LiNbO3 crystal, the response time is shortened apparently. The nonvolatile diffraction efficiency and sensitivity are raised largely. The mechanism in blue photorefractive nonvolatile holographic storage is discussed.

作者徐超张春雷代丽冷雪松许磊徐玉恒

机构地区 School of Chemical Engineering and Technology Material Science and Engineering College

出处《Chinese Physics B》 SCIE EI CAS CSCD 2013年第5期306-309,共4页 中国物理B（英文版）

基金 Project supported by the Fundamental Research Funds for the Central Universities of China (Grant No. DL12AB03) the National Natural Science Founda-tion of China (Grant No. 60777006)

关键词 Mg：Ru：Fe：LiNbO3 crystal infrared spectroscopy nonvolatile holographic properties Mg：Ru：Fe：LiNbO3 crystal, infrared spectroscopy, nonvolatile holographic properties

分类号 O734 [理学—晶体学]

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