| White-Light Nonlinear Photonic Lattices in Self-Defocusing Media |
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| 作者姓名： | 高垣梅 刘思敏 |
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| 作者单位： | [1]College of Physics and Electronics, Shandong Normal University, Jinan 250014 [2]Department of Physics, Nankai Universitv. Tianiin 300071 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 60378013, 10474047, and 60278006. |
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| 摘 要： | Using fully incoherent white light emitted from an incandescent lamp and amplitude mask, we experimentally investigate the influence of several factors on the fabrication of the lattice in photovoltaic self-defocusing LiNbO3：Fe crystal, the factors include the orientation of the crystalline c axis relative to the principal axis of the photonic lattice and the filament, the diameter of input dark spot and the separation of the adjacent input dark spots. Experimental results reveal that the best fabricating condition of photonic lattices is that the principal axis of lattice is tilted for 45^o relative to the crystalline c axis which is parallel to the filament of the lamp. In addition, it is necessary that the diameter of the input dark spot is larger than the half of their separation.
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| 关 键 词： | 白光 非线性光学 晶格 散焦 |
| 收稿时间： | 2007-2-26 |
| 修稿时间： | 2007-02-26 |
White-Light Nonlinear Photonic Lattices in Self-Defocusing Media |
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| GAO Yuan-Mei,LIU Si-Min.White-Light Nonlinear Photonic Lattices in Self-Defocusing Media[J].Chinese Physics Letters,2007,24(6):1596-1599. |
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| Authors: | GAO Yuan-Mei LIU Si-Min |
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| Institution: | 1 College of Physics and Electronics, Shandong Normal University, ,Jinan 250014 2Department of Physics, Nankai University, Tianjin 300071 |
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| Abstract: | Using fully incoherent white light emitted from an incandescent lamp and amplitude mask, we experimentally investigate the influence of several factors on the fabrication of the lattice in photovoltaic self-defocusing LiNbO3:Fe crystal, the factors include the orientation of the crystalline c axis relative to the principal axis of the photonic lattice and the filament, the diameter of input dark spot and the separation of the adjacent input dark spots. Experimental results reveal that the best fabricating condition of photonic lattices is that the principal axis of lattice is tilted for 45° relative to the crystalline c axis which is parallel to the filament of the lamp. In addition, it is necessary that the diameter of the input dark spot is larger than the half of their separation. |
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| Keywords: | 42 65 Tg 42 65 -k |
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