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

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 struct...

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Bibliographic Details
Published in:Chinese physics B 2015-03, Vol.24 (3), p.474-477
Main Author: 刘培亮 黄垚 边武 邵虎 钱源 管桦 唐丽艳 高克林
Format: Article
Language:English
Subjects:
Clocks
Correlation
Dipoles
Dynamics
Hyperfine structure
Laser beams
Lasers
Polarization
Wavelengths
偏振方向
偏振激光
时钟
波长测量
线性偏振
结构水
非零角动量
魔术
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Summary: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.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/3/039501