Laser Spectroscopy on Forbidden Transitions in Trapped Highly Charged Ar13+ Ions

被引：69
|
作者：
Maeckel, V. [1 ]
Klawitter, R. [1 ]
Brenner, G. [1 ]
Lopez-Urrutia, J. R. Crespo [1 ]
Ullrich, J. [1 ]
机构：
[1] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 14期
关键词：
BEAM; HYDROGENLIKE; FREQUENCY; PROJECT; URANIUM; GSI;
D O I：
10.1103/PhysRevLett.107.143002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate resonant fluorescence laser spectroscopy in highly charged ions (HCI) stored in an electron beam ion trap by investigating the dipole-forbidden 1s(2)2s(2)2p P-2(3/2)-P-2(1/2) transition in boronlike Ar13+ ions. Forced evaporative cooling yielded a high resolving power, resulting in an accurate wavelength determination to lambda = 441.255 68(26) nm. By applying stronger cooling and two-photon excitation, new optical frequency standards based upon ultrastable transitions in such HCI could be realized in the future, e. g., for the search of time variations of the fine-structure constant.
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页数：5
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