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Proceedings Paper

The development towards the optical lattice clock of strontium atom in National Time Service Center
Author(s): X. Tian; Y. B. Wang; H. Liu; F. Gao; J. Ren; B. Q. Lu; Q. F. Xu; Y. L. Xie; H. Chang
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Paper Abstract

At present the optical clock with accuracy and stability achieves to 10-18 level, which could be the next generation of time and frequency standard. This paper gives an introduction of the progress of researching on the optical lattice clock of Strontium atom in NTSC (National Time Service Center). We realize the (5s5s)1S0—(5s5p)1P1 cooling (blue MOT) and (5s5s)1S0—(5s5p)3P1 cooling (red MOT) in succession for the optical lattice clock, and loading these cold atoms in a lattice composed by a magic wave-length is studied. By using our narrow line-width diode laser and the fiber femtosecond optical frequency comb, we precisely measure the absolute frequencies of the inter-combination transitions (5s5s)1S0—(5s5p)3P1 of four isotopes of Strontium referenced to an H maser.

Paper Details

Date Published: 21 August 2014
PDF: 8 pages
Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 92330I (21 August 2014); doi: 10.1117/12.2068993
Show Author Affiliations
X. Tian, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Y. B. Wang, National Time Service Ctr. (China)
H. Liu, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
F. Gao, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
J. Ren, National Time Service Ctr. (China)
B. Q. Lu, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Q. F. Xu, National Time Service Ctr. (China)
Y. L. Xie, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
H. Chang, National Time Service Ctr. (China)


Published in SPIE Proceedings Vol. 9233:
International Symposium on Photonics and Optoelectronics 2014
Zhiping Zhou, Editor(s)

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