Design and construction of a static electric field analysis system using Rydberg atom

表面物理分析采用原子物理学中熟知的里德伯原子。特别地，为了测量难以测量的弱静电场，设计并构建了一个使用里德伯原子的分析系统。虽然静电场是基本的物理性质，但只要探针是由金属制成的，探针本身就会干扰电场，因此测量非常困难。在我们的系统中，由于里德伯原子作为探针是中性原子，所以探针不干扰电场。虽然在当前状态下可以观察到20 mV/cm的背景电场，但进一步提高激光器的稳定性等仍然是下一个课题。

Rydberg atoms well known in atomic physics were employed in surface physics analysis. Especially, in order to measure a weak static electric field where measurement is difficult, an analysis system using Rydberg atom was designed and constructed. Although a static electric field is basic physics property, the measurement is very difficult since a probe itself disturbs the electric field as long as the probe is made of metal. In our system the probe doesn't disturb the electric field since the Rydberg atom as the probe is a neutral atom. Although the background electric field of 20mV/cm can be observed in current status, the further improvement of stabilization of laser, etc. remained as a next subject.