| LiNbO3∶Fe∶Rh晶体近红外非挥发全息记录 |
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| 引用本文： | 李大汕,刘德安,职亚楠,栾竹,刘立人.LiNbO3∶Fe∶Rh晶体近红外非挥发全息记录[J].中国激光,2007,34(10):1398-1402. |
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| 作者姓名： | 李大汕 刘德安 职亚楠 栾竹 刘立人 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 上海201800 |
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| 基金项目： | 科技部重大基础研究前期研究专项基金(2002CCA03550)，国家自然科学基金(60177016)资助课题 |
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| 摘 要： | 采用双中心记录方案在双掺杂LiNbO3∶Fe∶Rh晶体中实现了近红外非挥发全息记录,研究了LiNbO3∶Fe∶Rh晶体在633 nm,752 nm,799 nm波长下的全息记录性能。结果表明,在使用近红外记录光时,其记录灵敏度随敏化光强的变化趋势与双中心短波长记录时的不同。通过和LiNbO3∶Fe∶Mn等传统双掺杂铌酸锂晶体的近红外波段记录效果对比,发现同时掺杂Fe和Rh可增强晶体对近红外光的吸收,获得更高的浅中心Fe光生伏特系数,从而能够在LiNbO3∶Fe∶Rh晶体中实现近红外波段的光折变全息记录。
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| 关 键 词： | 全息 非挥发全息记录 近红外记录 LiNbO3∶Fe∶Rh晶体 |
| 文章编号： | 0258-7025（2007）10-1398-05 |
| 收稿时间： | 2007/3/26 |
| 修稿时间： | 2007-03-26 |
Near-Infrared Nonvolatile Holographic Recording in LiNbO3∶Fe∶Rh Crystal |
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| LI Da-shan, LIU De-an, ZHI Ya-nan, LUAN Zhu, LIU Li-ren.Near-Infrared Nonvolatile Holographic Recording in LiNbO3∶Fe∶Rh Crystal[J].Chinese Journal of Lasers,2007,34(10):1398-1402. |
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| Authors: | LI Da-shan LIU De-an ZHI Ya-nan LUAN Zhu LIU Li-ren |
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| Institution: | Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | The near-infrared nonvolatile holographic recording has been realized in a doubly doped LiNbO3∶Fe∶Rh crystal by the traditional two-center recording scheme. This crystal has been studied experimentally for holographic recording at 633, 752 and 799 nm. The experimental results show that, the sensitizing light intensity affects the recording sensitivity in a different way with two-center holographic recording by shorter wavelength laser. Compared with LiNbO3∶Fe∶Mn and other traditional doubly doped LiNbO3 crystals, the near-infrared absorption and photovoltaic coefficient of shallow trap Fe are enhanced in LiNbO3∶Fe∶Rh crystal. The LiNbO3 crystal can realize two-center near-infrared nonvolatile photorefractive holographic recording. |
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| Keywords: | holography nonvolatile holographic recording near-infrared recording LiNbO3∶Fe∶Rh crystal |
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