论文标题
在光储存光谱中
In-situ ac Stark shift Detection in Light Storage Spectroscopy
论文作者
论文摘要
我们报告了一种测量在存储的光实验中观察到的AC Stark Shift的方法，同时确定了两光子过渡中涉及的电子接地态之间的能量分裂。为此，我们利用频率匹配效果在光储存光谱中。我们发现在实验检索阶段施加的控制场的强度有线性依赖性。同时，我们观察到，光转移对信号场的强度不敏感，这与使用电磁诱导的透明度（EIT）或相干种群捕获（CPT）相反，这与连续操作的方案相反。我们的结果对于使用EIT和CPT类型设备的将来的基于光存储的精度测量可能非常重要，在这些设备中，与使用连续暴露于光场的方案相比，可以抑制信号场的强度波动的影响。
We report on a method for measuring ac Stark shifts observed in stored light experiments while simultaneously determining the energetic splitting between the electronic ground states involved in the two-photon transition. To this end we make use of the frequency matching effect in light storage spectroscopy. We find a linear dependence on the intensity of the control field applied during the retrieval phase of the experiment. At the same time, we observe that the light shift is insensitive to the intensity of the signal field which is in contrast to continuously operated schemes using electromagnetically induced transparency (EIT) or coherent population trapping (CPT). Our results may be of importance for future light storage-based precision measurements with EIT and CPT-type devices where, in contrast to schemes using continuous exposure to optical fields, the impact of intensity fluctuations from the signal field can be suppressed.
