| 应用于铯原子喷泉钟的二维磁光阱研制 |
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| 引用本文： | 吴长江,阮军,陈江,张辉,张首刚.应用于铯原子喷泉钟的二维磁光阱研制[J].物理学报,2013,62(6):63201-063201. |
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| 作者姓名： | 吴长江 阮军 陈江 张辉 张首刚 |
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| 作者单位： | 1. 中国科学院国家授时中心, 西安 710600;
2. 中国科学院大学, 北京 100049;
3. 中国科学院时间频率基准重点实验室, 西安 710600 |
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| 基金项目： | 国家自然科学基金重点项目(批准号: 10834007)、国家杰出青年科学基金(批准号: 61025023)和国家重大科研仪器设备研制专项 (批准号: 61127901)资助的课题. |
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| 摘 要： | 理论模拟研究了二维磁光阱原子束流量与饱和蒸汽压、冷却光强、激光失谐量的关系, 构建了二维磁光阱(2D-MOT)装置, 实验上实现了大流量的慢速原子束, 其测量值为2.1× 109/s.利用荧光法测量了各实验参数与流量的关系, 测量结果与数值模拟结果符合较好.
关键词：
2D-MOT
流量
慢速原子束
铯原子喷泉钟
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| 关 键 词： | 2D-MOT 流量 慢速原子束 铯原子喷泉钟 |
| 收稿时间： | 2012-10-20 |
A two-dimensional magneto-optical trap for a cesium fountain clock |
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| Wu Chang-Jiang,Ruan Jun,Chen Jiang,Zhang Hui,Zhang Shou-Gang.A two-dimensional magneto-optical trap for a cesium fountain clock[J].Acta Physica Sinica,2013,62(6):63201-063201. |
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| Authors: | Wu Chang-Jiang Ruan Jun Chen Jiang Zhang Hui Zhang Shou-Gang |
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| Institution: | 1. National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3. Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Xi'an 710600, China |
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| Abstract: | To study the relationship of atomic beam flow with cooling intensity, laser detuning, and magnetic field gradient, the numerical simulation is performed and a two-dimensional magneto-optical trap setup is built. A low-velocity atomic beam flow is generated with a total flux of 2.1 × 109/s. Theoretical analysis and experimental results are in good consistence. Optimal detuning and magnetic field gradient can produce the largest atomic beam flow. |
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| Keywords: | two dimensional magneto-optical trap flux low-velocity atom beam cesium atom fountain clock |
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