| Experimental Improvement of Signal of a Single Laser-Cooled Trapped ^40Ca^＋ Ion |
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| 引用本文： | 舒华林 离彬 管桦 刘曲 黄学人 高克林. Experimental Improvement of Signal of a Single Laser-Cooled Trapped ^40Ca^＋ Ion[J]. 中国物理快报, 2007, 24(5): 1217-1219 |
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| 作者姓名： | 舒华林 离彬 管桦 刘曲 黄学人 高克林 |
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| 作者单位： | [1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 [2]Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 [3]Graduate School of the Chinese Academy of Science, Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10274093, 10504038 and 60490280, and National Key Basic Research Programme of China under Grant No 2005CB724502. |
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| 摘 要： | A single ^40Ca^＋ ion is loaded in a miniature Paul trap and the probability of directly loading a single ion is above 50%. The signal-to-noise ratio and the storage time for a single ion have been improved by minimizing the ion micromotion and locking a 397nm cooling laser to a Fabry-Perot interferometer and optogalvanic signal. From the fluorescence spectrum, the ion temperature is estimated to be about 5mK.
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| 关 键 词： | ^40Ca^＋ Ion 激光冷却 信号处理 信噪比 |
| 收稿时间： | 2007-02-12 |
| 修稿时间： | 2007-02-12 |
Experimental Improvement of Signal of a Single Laser-Cooled Trapped 40Ca+ Ion |
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| SHU Hua-Lin,GUO Bin,GUAN Hua,LIU Qu,HUANG Xue-Ren,GAO Ke-Lin. Experimental Improvement of Signal of a Single Laser-Cooled Trapped 40Ca+ Ion[J]. Chinese Physics Letters, 2007, 24(5): 1217-1219 |
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| Authors: | SHU Hua-Lin GUO Bin GUAN Hua LIU Qu HUANG Xue-Ren GAO Ke-Lin |
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| Affiliation: | 1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071; 2Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 ; 3 Graduate School of the Chinese Academy of Science, Beijing 100049 |
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| Abstract: | A single 40Ca+ ion is loaded in a miniature Paul trap and the probability of directly loading a single ion is above 50%. The signal-to-noise ratio and the storage time for a single ion have been improved by minimizing the ion micromotion and locking a 397nm cooling laser to a Fabry--Perot interferometer and optogalvanic signal. From the fluorescence spectrum, the ion temperature is estimated to be about 5mK. |
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| Keywords: | 32.80.Pj 32.70.Jz 42.62.Fi |
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