中国物理B ›› 2015, Vol. 24 ›› Issue (3): 39501-039501.doi: 10.1088/1674-1056/24/3/039501

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    

Correlation between the magic wavelengths and the polarization direction of the linearly polarized laser in the Ca+ optical clock

刘培亮a b c, 黄垚a b, 边武a b c, 邵虎a b c, 钱源a b c, 管桦a b, 唐丽艳a b, 高克林a b   

  1. a State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    b Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    c University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2014-11-07 修回日期:2014-11-21 出版日期:2015-03-05 发布日期:2015-03-05
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB821301), the National Natural Science Foundation of China (Grant Nos. 11474318, 91336211, and 11034009), and the Chinese Academy of Sciences.

Correlation between the magic wavelengths and the polarization direction of the linearly polarized laser in the Ca+ optical clock

Liu Pei-Liang (刘培亮)a b c, Huang Yao (黄垚)a b, Bian Wu (边武)a b c, Shao Hu (邵虎)a b c, Qian Yuan (钱源)a b c, Guan Hua (管桦)a b, Tang Li-Yan (唐丽艳)a b, Gao Ke-Lin (高克林)a b   

  1. a State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    b Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    c University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-11-07 Revised:2014-11-21 Online:2015-03-05 Published:2015-03-05
  • Contact: Gao Ke-Lin E-mail:klgao@wipm.ac.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB821301), the National Natural Science Foundation of China (Grant Nos. 11474318, 91336211, and 11034009), and the Chinese Academy of Sciences.

摘要:

The magic wavelengths for different Zeeman components are measured based on the 40Ca+ optical clock. The dynamic dipole polarizability of a non-zero angular moment level has correlation with the polarization direction of the linearly polarized laser beam, and we show that the four hyperfine structure levels of 4s1/2, m = ± 1/2 and 3d5/2, m = ± 1/2 for 40Ca+ have the same dynamic dipole polarizability at the magic wavelength and a certain polarization direction. In addition, the existence of a specific direction of polarization may provide a new idea for improving the precision of magic wavelength measurement in experiment.

关键词: optical clock, dynamic dipole polarizability, linearly polarized laser

Abstract:

The magic wavelengths for different Zeeman components are measured based on the 40Ca+ optical clock. The dynamic dipole polarizability of a non-zero angular moment level has correlation with the polarization direction of the linearly polarized laser beam, and we show that the four hyperfine structure levels of 4s1/2, m = ± 1/2 and 3d5/2, m = ± 1/2 for 40Ca+ have the same dynamic dipole polarizability at the magic wavelength and a certain polarization direction. In addition, the existence of a specific direction of polarization may provide a new idea for improving the precision of magic wavelength measurement in experiment.

Key words: optical clock, dynamic dipole polarizability, linearly polarized laser

中图分类号:  (Auxiliary and recording instruments; clocks and frequency standards)

  • 95.55.Sh
76.70.Fz (Double nuclear magnetic resonance (DNMR), dynamical nuclear polarization) 29.27.Hj (Polarized beams)