| Rb87冷原子电磁感应透明吸收曲线不对称性的分析 |
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| 引用本文： | 白金海,芦小刚,缪兴绪,裴丽娅,王梦,高艳磊,王如泉,吴令安,傅盘铭,左战春. Rb87冷原子电磁感应透明吸收曲线不对称性的分析[J]. 物理学报, 2015, 64(3): 34206-034206. DOI: 10.7498/aps.64.034206 |
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| 作者姓名： | 白金海 芦小刚 缪兴绪 裴丽娅 王梦 高艳磊 王如泉 吴令安 傅盘铭 左战春 |
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| 作者单位： | 中国科学院物理研究所, 北京凝聚态物理国家实验室, 北京 100190 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划，国家高技术研究发展计划(批准号:2011AA120102)资助的课题.* Project supported by the National Natural Science Foundation of China，the National Basic Research Program of China，the National High Technology Research and Development Program of China |
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| 摘 要： | 研究了耦合光共振时Rb87冷原子D1线Λ形能级体系中电磁感应透明吸收曲线的不对称现象.发现间隔为814 MHz的另一个激发态能级导致了不对称现象.不对称现象的根本原因是受激拉曼散射, 同时发现透明窗口两侧不对称的吸收峰的幅值比与耦合光强成正比.理论拟合与实验数据符合得较好.
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| 关 键 词： | 电磁感应透明 不对称 受激拉曼散射 激发态 |
| 收稿时间： | 2014-07-10 |
Analysis on the absorption curve asymmetry of electromagnetically induced transparency in Rb87 cold atoms |
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| Bai Jin-Hai,Lu Xiao-Gang,Miao Xing-Xu,Pei Li-Ya,Wang Meng,Gao Yan-Lei,Wang Ru-Quan,Wu Ling-An,Fu Pan-Ming,Zuo Zhan-Chun. Analysis on the absorption curve asymmetry of electromagnetically induced transparency in Rb87 cold atoms[J]. Acta Physica Sinica, 2015, 64(3): 34206-034206. DOI: 10.7498/aps.64.034206 |
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| Authors: | Bai Jin-Hai Lu Xiao-Gang Miao Xing-Xu Pei Li-Ya Wang Meng Gao Yan-Lei Wang Ru-Quan Wu Ling-An Fu Pan-Ming Zuo Zhan-Chun |
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| Affiliation: | Institute of Physics, Chinese Academy of Sciences, Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China |
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| Abstract: | The asymmetry of the absorption curve of electromagnetically induced transparency by a resonant coupling field in Λ-type three-level systems for Rb87 cold atoms is investigated. We find that it is the other excited state, separated by an interval of 814 MHz, that induces this phenomenon. The primary cause of it is the stimulated Raman scattering. We also find that the ratio between the heights of the absorption peaks on the two sides of the transparency window is proportional to the intensity of the coupling beam. The theoretical result agrees well with the experimental data. |
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| Keywords: | electromagnetically induced transparency asymmetry stimulated Raman scattering excited state |
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