| Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals |
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| 引用本文： | 李大汕 刘德安 职亚楠 曲伟娟 刘立人 张娟. Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals[J]. 中国物理快报, 2007, 24(4): 971-974 |
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| 作者姓名： | 李大汕 刘德安 职亚楠 曲伟娟 刘立人 张娟 |
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| 作者单位： | [1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800 [2]School of Communication and Information Engineering, Shanghai University, Shanghai 200072 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 60177016, and the Fore-Research of Basic Research Project of China under Grant No 2002CCA03500. |
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| 摘 要： | A laser beam at wavelength 647nm is focused on a sample of 5mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation （nucleation field） is observed. To the best of our knowledge, it is the longest wavelength reported for laser-induced domain inversion. This extends the spectrum of laser inducing, and the experimental results are helpful to understand the nucleation dynamics under laser illumination. The dependence of nucleation fields on intensities of laser beams is analysed in experiments.
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| 关 键 词： | 红外线 反射 锂 晶体 |
| 收稿时间： | 2006-11-12 |
| 修稿时间： | 2006-11-12 |
Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals |
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| LI Da-Shan,LIU De-An,ZHI Ya-Nan,QU Wei-Juan,LIU Li-Ren,ZHANG Juan. Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals[J]. Chinese Physics Letters, 2007, 24(4): 971-974 |
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| Authors: | LI Da-Shan LIU De-An ZHI Ya-Nan QU Wei-Juan LIU Li-Ren ZHANG Juan |
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| Affiliation: | 1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800; 2School of Communication and Information Engineering, Shanghai University, Shanghai 200072 |
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| Abstract: | A laser beam at wavelength 647nm is focused on a sample of 5mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation (nucleation field) is observed. To the best of our knowledge, it is the longest wavelength reported for laser-induced domain inversion. This extends the spectrum of laser inducing, and the experimental results are helpful to understand the nucleation dynamics under laser illumination. The dependence of nucleation fields on intensities of laser beams is analysed in experiments. |
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| Keywords: | 42.70.Mp 75.60.Ch 77.84.Dy |
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