| 极弱散射结构中的随机激光器 |
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| 引用本文： | 刘大禾,石锦卫,陈淑静,翟天瑞,孔祥昱,王兆娜. 极弱散射结构中的随机激光器[J]. 光学学报, 2011, 0(9): 234-242 |
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| 作者姓名： | 刘大禾 石锦卫 陈淑静 翟天瑞 孔祥昱 王兆娜 |
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| 作者单位： | 北京师范大学物理系应用光学北京市重点实验室;南昌航空大学无损检测技术教育部重点实验室;北京工业大学应用数理学院; |
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| 基金项目： | 国家自然科学基金(11074024)资助课题 |
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| 摘 要： | 提出了一种基于空间散斑的极弱散射随机激光系统,并用该系统在不同抽运条件下分别实现了相干反馈输出和非相干反馈输出.结果表明,两种反馈机制存在内在的联系.提出了随机腔耦合的概念,对弱散射随机激光器的模式特性给出了合理的解释.
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| 关 键 词： | 激光器 随机激光 弱散射结构 腔耦合 |
Random Laser in Weakly Scattering Structures |
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| Liu Dahe, Shi Jinwei Chen Shujing Zhai Tianrui Kong Xiangyu Wang Zhaona(Beijing Municipal Key Laboratory of Applied Optics. Random Laser in Weakly Scattering Structures[J]. Acta Optica Sinica, 2011, 0(9): 234-242 |
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| Authors: | Liu Dahe Shi Jinwei Chen Shujing Zhai Tianrui Kong Xiangyu Wang Zhaona(Beijing Municipal Key Laboratory of Applied Optics |
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| Affiliation: | Liu Dahe1,2 Shi Jinwei1 Chen Shujing1 Zhai Tianrui3 Kong Xiangyu1 Wang Zhaona1(1Beijing Municipal Key Laboratory of Applied Optics,Department of Physics,Beijing Normal University,Beijing 100875,China 2Key Laboratory of Nondestructive Test,Ministry of Education,Nanchang Hangkong University,Nachang,Jiangxi 330063,China 3College of Applied Sciences,Beijing University of Technology,Beijing 100124,China |
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| Abstract: | A random laser in weakly scattering structure formed by spatial speckle is investigated.Both phenomena induced by coherent feedback and intensity feedback are observed in the same system.The result shows that two kinds of feedback are related,but independent of each other.A physical mechanism of cavities coupling is proposed based on experimental investigations.The mode characteristics of weakly scattering random laser can be well explained through this mechanism. |
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| Keywords: | lasers random laser weakly scattering structure cavities coupling |
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