Spectral narrowing of magnetic resonance in transverse optical pumping by recurrently using free decay
Spectral narrowing of magnetic resonance in transverse optical pumping by recurrently using free decay
复制标题
通过循环使用自由衰减来缩小横向光泵浦中磁共振的光谱
DOI：
10.1088/0953-4075/30/10/013
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
K. Sakurai
中科院分区：
文献类型：
--
作者：
T. Mitsui;K. Yamashita;K. Sakurai
本文提出了一种利用横向光抽运磁共振中的自由衰减（FD）来减小谱宽的新型光谱方法。在用泵浦光激发原子系统的同时，由数字波形存储器记录诱导的FD信号。然后，为了诱导下一个FD，我们用泵浦光激发原子系统，其强度由记录的FD调制，并记录由该泵浦光诱导的FD。经常使用这个程序减少了原子共振的光谱宽度，增加了信噪比。窄化过程是通过使用一个随机调制的稳态泵浦光演示。理论和实验研究。我们的方法有助于提高原子共振中心频率的测量精度。
We propose a new type of spectroscopic method to reduce spectral width by recurrently using free decay (FD) in magnetic resonance of transverse optical pumping. Simultaneously with the excitation of the atomic system by a pump beam, the induced FD signal was recorded by a digital waveform memory. Then, in order to induce the next FD, we excited the atomic system by a pump beam, the intensity of which was modulated by the recorded FD, and recorded the FD induced by this pump beam. Recurrent use of this procedure reduced the spectral width of the atomic resonance and increased the signal-to-noise ratio. The narrowing procedure was demonstrated by using a randomly modulated stationary pump beam. Theoretical and experimental studies are presented. Our method serves to increase the precision of the measurement of the centre frequency of the atomic resonance.