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

作　　者：刘培亮 黄垚 边武 邵虎 钱源 管桦 唐丽艳 高克林 

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences [2]Key Laboratory of Atomic Frequency Standards,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences [3]University of Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第3期474-477,共4页中国物理B（英文版）

基　　金：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);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.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 

分 类 号：O436.3[机械工程—光学工程]