Measurement of quantum defect of nS and nD states using field ionization spectroscopy in ultracold cesium atoms
Zhang Lin-Jie(张临杰), Feng Zhi-Gang(冯志刚), Li An-Ling(李安玲), Zhao Jian-Ming(赵建明)†, Li Chang-Yong(李昌勇), and Jia Suo-Tang(贾锁堂)
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University,Taiyuan 030006, China
This paper reports that ultracold atoms are populated into different nS and nD Rydberg states (n=25～52) by two-photon excitation. The ionization spectrum of an ultracold Rydberg atom is acquired in a cesium magneto-optical trap by using the method of pulse field ionization. This denotes nS and nD states in the ionization spectrum and fits the data of energy levels of different Rydberg states to obtain quantum defects of nS and nD states.
Received: 26 August 2008
Revised: 08 October 2008
Accepted manuscript online:
Fund: Project
supported by the 973 Program of China (Grant No 2006CB921603), the
National Natural Science Foundation of China (Grant Nos 10574084,
60678003 and 60778008), the Special Foundation for State Major Basic
Research Program of China (Grant No 2005CCA06
Cite this article:
Zhang Lin-Jie(张临杰), Feng Zhi-Gang(冯志刚), Li An-Ling(李安玲), Zhao Jian-Ming(赵建明), Li Chang-Yong(李昌勇), and Jia Suo-Tang(贾锁堂) Measurement of quantum defect of nS and nD states using field ionization spectroscopy in ultracold cesium atoms 2009 Chin. Phys. B 18 1838
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