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

doi:10.1007/s11467-009-0026-6

Frontiers of Physics

2009, Vol. 4

Issue (2): 144-154 https://doi.org/10.1007/s11467-009-0026-6

本期目录

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

Bin GUO (郭彬)^1,2,3, Hua GUAN (管桦)^1,2, Qu LIU (刘曲)^1,2,3, Yao HUANG (黄垚)^1,2,3, Wan-cheng QU (屈万成)^1,2,3, Xue-ren HUANG (黄学人)^1,2(

), Ke-lin GAO (高克林)^1,2(

)

1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China; 3. Graduate School, Chinese Academy of Sciences, Beijing 100080, China

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Abstract：

The trapping and laser cooling of ⁴⁰Ca⁺ ion on the way toward optical frequency standards have been developed. A single ⁴⁰Ca⁺ 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 4s²S_1/2-3d²D_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.

Key words： ion trap optical frequency standard laser stabilization laser cooling

收稿日期: 2009-02-13 出版日期: 2009-06-05

Corresponding Author(s): Xue-ren HUANG (黄学人),Email:hxueren@wipm.ac.cn; Ke-lin GAO (高克林),Email:klgao@wipm.ac.cn

引用本文:

. Preliminary frequency measurement of the electric quadrupole transition in a single laser-cooled ⁴⁰Ca⁺ ion[J]. Frontiers of Physics, 2009, 4(2): 144-154.
Bin GUO (郭彬), Hua GUAN (管桦), Qu LIU (刘曲), Yao HUANG (黄垚), Wan-cheng QU (屈万成), Xue-ren HUANG (黄学人), Ke-lin GAO (高克林). Preliminary frequency measurement of the electric quadrupole transition in a single laser-cooled ⁴⁰Ca⁺ ion. Front. Phys. , 2009, 4(2): 144-154.

链接本文:

https://academic.hep.com.cn/fop/CN/10.1007/s11467-009-0026-6
https://academic.hep.com.cn/fop/CN/Y2009/V4/I2/144

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