| LiNbO_3:In:Fe:Cu晶体中的双波长非易失存储 |
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| 引用本文： | 骆素华,王健,石宏新,孟庆鑫,姜永远,孙秀冬.LiNbO_3:In:Fe:Cu晶体中的双波长非易失存储[J].光子学报,2009,38(7). |
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| 作者姓名： | 骆素华 王健 石宏新 孟庆鑫 姜永远 孙秀冬 |
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| 作者单位： | 哈尔滨工业大学,物理系,哈尔滨,150001 |
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| 基金项目： | 国防科工委基础研究项目，国家重点基础研究发展规划(973计划)，哈尔滨工业大学创新团队资助项目 |
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| 摘 要： | 为了提高晶体的非易失存储性能,采用双波长存储技术实验研究了LiNbO3:In:Fe:Cu晶体中的非易失存储,折射率调制度为1.04×10-4,记录灵敏度达到0.965 cm/J.与传统的双色非易失记录相比,该方法大幅度地提高了光栅的强度和记录的灵敏度.利用Kukhtarev带输运模型对双波长非易失记录过程中光栅的动态演化过程进行了数值模拟,同时讨论了氧化还原程度对双波长非易失全息记录的影响.理论与实验符合的较好.
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| 关 键 词： | 非易失记录 蓝光光折变 灵敏度 LiNbO3:In:Fe:Cu晶体 |
Dual-wavelength Nonvolatile Recording in LiNbO_3:In:Fe:Cu Crystals |
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| LUO Su-hua,WANG Jian,SHI Hong-xin,MENG Qing-xin,JIANG Yong-yuan,SUN Xiu-dong.Dual-wavelength Nonvolatile Recording in LiNbO_3:In:Fe:Cu Crystals[J].Acta Photonica Sinica,2009,38(7). |
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| Authors: | LUO Su-hua WANG Jian SHI Hong-xin MENG Qing-xin JIANG Yong-yuan SUN Xiu-dong |
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| Institution: | Department of Physics;Harbin Institute of Technology;Harbin;150001;China |
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| Abstract: | To improve the nonvolatile properties,the dual-wavelength technology was used to investigated the nonvolatile recording in LiNbO3:In:Fe:Cu crystal.The sensitivity reaches to 0.965 cm/J and the refractive index change is 1.04×10-4,which are improved greatly comparing to those obtained using the conventional two-color recording.The evolution of the grating intensity versus time as well as the influence of oxidation/reduction treatment on the photorefraction is simulated numerically.The results show that the numerical simulations agree well with the experimental results. |
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| Keywords: | Nonvolatile recording Blue photorefraction Sensitivity LiNbO3:In:Fe:Cu crystal |
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