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| 暗光伏孤子的实验研究 | |
| 引用本文： | 李金萍,卢克清,赵卫,朱香平,杨延龙,过晓辉,宋建平,张彦鹏. 暗光伏孤子的实验研究[J]. 光子学报, 2006, 35(8): 1225-1228 |
| 作者姓名： | 李金萍 卢克清 赵卫 朱香平 杨延龙 过晓辉 宋建平 张彦鹏 |
| 作者单位： | 中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安,710068;陕西师范大学物理学与信息技术学院,西安,710062;中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安,710068;西安交通大学电子科学与技术系,西安,710049 |
| 基金项目： | 国家自然科学基金 , 中国科学院所长基金 |
| 摘 要： | 在LiNbO3∶Fe晶体中，采用相位掩模对部分空间非相干和相干暗光伏孤子进行了实验研究.实验观察到了部分空间非相干和相干的一维和二维暗光伏孤子，它们的形成来源于光伏效应，是自散焦效应和衍射效应平衡的结果.实验和理论分析表明，暗光伏孤子的形成与光的传输方向，强度梯度与晶体c轴夹角有关；只有在一定的条件下，才能得到稳态的部分空间非相干暗光伏孤子. |
| 关 键 词： | 光伏效应 光折变晶体 空间光孤子 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-20 |
Experimental study on dark photovoltaic solitons |
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| Li Jinping,Lu Keqing,Zhao Wei,Yang Yanlong,Zhu Xiangping,Guo Xiaohui,Song Jianping,Zhang Yanpeng. Experimental study on dark photovoltaic solitons[J]. Acta Photonica Sinica, 2006, 35(8): 1225-1228 | |
| Authors: | Li Jinping Lu Keqing Zhao Wei Yang Yanlong Zhu Xiangping Guo Xiaohui Song Jianping Zhang Yanpeng |
| Affiliation: | (1 State Key Laboratory of Transient Optics and Photonics,Xi′an Institute of Optics and Precision Mechanics,Chinese Academic of Sciences,Xi′an 710068 ) (2 College of Physics and Information Technology,Shaanxi Normal University,Xi′an 710062 ) (3 Department of Electronic Science and Technology,Xi′an Jiaotong University,Xi′an 710049) |
| Abstract: | Spatially partially incoherent and coherent dark photovoltaic solitons are comprehensively experimentally studied with phase masks in LiNbO3∶Fe crystals. One-dimension and two-dimension dark photovoltaic solitons are observed with spatially partially incoherent and coherent beam,which result from the bulk photovoltaic effect and when diffraction is exactly balanced by photorefractive self-defocusing. The analysis of theory and experiments shows that dark photovoltaic solitons depend on the direction of propagation,orientation of the intensity gradient,with respect to the crystalline axes of the medium. Under certain conditions,the steady-state spatially partially incoherent dark photovoltaic solitons can be observed. |
| Keywords: | Photovoltaic effect Photorefractive crystal Optical spatial soliton |
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