| 光抽运信号的理论分析 |
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| 引用本文： | 钱庆凯,陈宜保,张晓平.光抽运信号的理论分析[J].物理实验,2011(11):40-42,46. |
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| 作者姓名： | 钱庆凯 陈宜保 张晓平 |
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| 作者单位： | 清华大学物理系; |
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| 摘 要： | 在原子辐射跃迁原理的基础上,依据光磁共振实验的基本实验现象建立简化模型,给出光抽运过程中跃迁速率方程,理论计算了光抽运信号光强随外场变化关系以及粒子跃迁弛豫时间随外场的变化关系,理论计算结果与实验符合.
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| 关 键 词： | 扫场信号 光抽运信号 弛豫时间 |
Analysis of optical pumping signal |
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| QIAN Qing-kai,CHEN Yi-bao,ZHANG Xiao-ping.Analysis of optical pumping signal[J].Physics Experimentation,2011(11):40-42,46. |
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| Authors: | QIAN Qing-kai CHEN Yi-bao ZHANG Xiao-ping |
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| Institution: | QIAN Qing-kai,CHEN Yi-bao,ZHANG Xiao-ping(Department of Physics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Optical pumping signal subjected to a scanning magnetic field was experimentally observed.According to the theory of atom radiation transition,a simplified energy model of optical pumping was established and the equation of transition rate was set based on the optical pumping magnetic resonance experiment.The dependences of the signal intensity and relaxation time on the magnetic field were numerically calculated,and the results were in good agreement with the experiment. |
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| Keywords: | scanning magnetic field optical pumping signal relaxation time |
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