Sensitive electric field measurement by fluorescence-dip spectroscopy of Rydberg states of atomic hydrogen

被引:83
作者
Czarnetzki, U [1 ]
Luggenholscher, D [1 ]
Dobele, HF [1 ]
机构
[1] Univ Essen Gesamthsch, Inst Laser & Plasmaphys, D-45117 Essen, Germany
关键词
D O I
10.1103/PhysRevLett.81.4592
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Fluorescence-dip spectroscopy based on an optical double resonance is used to probe the Stark splitting in highly excited Rydberg states of atomic hydrogen. After Doppler-free two-photon excitation to n = 3, fluorescence at Balmer alpha is observed. When the radiation of a second laser is tuned over the resonance between n = 3 and a Rydberg state, the Stark splitting manifests itself as a series of dips in the Balmer-alpha fluorescence intensity. Rydberg states up to n = 55 can be identified. The minimum detectable electric field is 5 V/cm, This is about an order of magnitude more sensitive than other laser-induced fluorescence techniques. [S0031-9007(98)07702-3].
引用
收藏
页码:4592 / 4595
页数:4
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