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

利用原子物理学中著名的里德伯原子进行表面物理分析。特别是针对测量较困难的弱静电场，设计并构建了基于里德伯原子的分析系统。虽然静电场是基本的物理性质，但测量起来非常困难，因为只要探针是金属制成的，探针本身就会干扰电场。在我们的系统中，探针不干扰电场，因为里德伯原子作为探针是中性原子。虽然目前可以观察到20mV/cm的背景电场，但进一步提高激光器的稳定性等仍是下一个课题。

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.