2010 Fiscal Year Final Research Report

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

Research Project

Project/Area Number	21760029
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Thin film/Surface and interfacial physical properties
Research Institution	Hosei University
Principal Investigator	NISHIMURA Tomoaki Hosei University, イオンビーム工学研究所, 准教授 (80388149)
Project Period (FY)	2009 – 2010
Keywords	リドベルグ原子 / 表面電場計測
Research Abstract	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.