Preliminary frequency measurement of the electric quadrupole transition in a single laser-cooled 40Ca+ ion

被引：10
|
作者：
Guo, Bin [1 ,2 ,3 ]
Guan, Hua [1 ,2 ]
Liu, Qu [1 ,2 ,3 ]
Huang, Yao [1 ,2 ,3 ]
Qu, Wan-cheng [1 ,2 ,3 ]
Huang, Xue-ren [1 ,2 ]
Gao, Ke-lin [1 ,2 ]
机构：
[1] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
[2] Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China
[3] Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
来源：
FRONTIERS OF PHYSICS IN CHINA | 2009年 / 4卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ion trap; optical frequency standard; laser stabilization; laser cooling; CLOCK TRANSITION; PAUL TRAP; HG-199(+); STANDARDS; SR-88(+); CAVITY; DRIFT;
D O I：
10.1007/s11467-009-0026-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The trapping and laser cooling of Ca-40(+) ion on the way toward optical frequency standards have been developed. A single Ca-40(+) ion is trapped in the miniature Paul trap and laser cooled by two frequency-stabilized diode lasers. A commercial Ti:Sapphire laser system at 729 nm is referenced to a high-finesse cavity to meet the requirements of ultra narrow linewidth of the 4s(2)S(1/2)-3d(2)D(5/2) electric quadrupole transition. Its center frequency is preliminarily measured to be 411 042 129 686.1 (2.6) kHz. The attempt to finally lock the 729-nm laser system to atomic transition is made. Further work to improve the accuracy of measurement and the stabilization of system locking is in consideration and preparation.
引用
收藏
页码：144 / 154
页数：11
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