Measurement of Ionization Threshold of Ultracold Cesium Rydberg Atoms in Static Electric Field
FENG Zhi-Gang, ZHANG Lin-Jie, ZHAO Jian-Ming, LI Chang-Yong, LI An-Ling, JIA Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006
Measurement of Ionization Threshold of Ultracold Cesium Rydberg Atoms in Static Electric Field
FENG Zhi-Gang, ZHANG Lin-Jie, ZHAO Jian-Ming, LI Chang-Yong, LI An-Ling, JIA Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006
摘要 We investigate the field ionization spectra of ultracold cesium Rydberg atoms in dc electric field. The ionization thresholds of different electric fields are measured and shift of the ionization threshold relative to field-free ionization threshold is accurately described by (6.06±0.14)F1/2 , which is in good agreement with the classical saddle-point model for field ionization. We obtain the field-free ionization threshold of cesium (6P3/2 ) as 19674.89±2.99cm-1 by fitting experimental data.
Abstract ：We investigate the field ionization spectra of ultracold cesium Rydberg atoms in dc electric field. The ionization thresholds of different electric fields are measured and shift of the ionization threshold relative to field-free ionization threshold is accurately described by (6.06±0.14)F1/2 , which is in good agreement with the classical saddle-point model for field ionization. We obtain the field-free ionization threshold of cesium (6P3/2 ) as 19674.89±2.99cm-1 by fitting experimental data.
Key words ：
79.70.+q
32.10.Hq
32.80.Pj
收稿日期: 2008-03-04
出版日期: 2008-06-26
:
79.70.+q
(Field emission, ionization, evaporation, and desorption)
32.10.Hq
(Ionization potentials, electron affinities)
32.80.Pj
引用本文:
FENG Zhi-Gang;ZHANG Lin-Jie;ZHAO Jian-Ming;LI Chang-Yong;LI An-Ling;JIA Suo-Tang. Measurement of Ionization Threshold of Ultracold Cesium Rydberg Atoms in Static Electric Field[J]. 中国物理快报, 2008, 25(7): 2661-2663.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2008/V25/I7/2661
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2008, Vol. 25 
