Measurement and optimization of stray electric ﬁeld shifts of
linear ion trap

doi:10.3969/j.issn.1007-5461.2023.01.015

Chinese Journal of Quantum Electronics ›› 2023, Vol. 40 ›› Issue (1): 127-132.doi: 10.3969/j.issn.1007-5461.2023.01.015

• Quantum Optics • Previous Articles Next Articles

Measurement and optimization of stray electric ﬁeld shifts of linear ion trap

WANG Miao 1,2,3 , CHEN Zheng 1,2,3 , HUANG Yao 1,2 , GUAN Hua 1,2 , GAO Kelin 1,2∗

( 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; 2 Key Laboratory of Atomic Frequency Standards, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China )

Received:2021-03-19 Revised:2021-04-27 Published:2023-01-28 Online:2023-01-28

Abstract

Abstract: Micromotion induced by radio-frequency (RF) ﬁeld contributes greatly to the systematic frequency shifts of optical frequency standards (OFSs). Although the micromotion is compensated to the best degree before each experiment, the inﬂuence of micromotion will gradually appear with the shift of stray electric ﬁeld during the experiment, which requires continuous compensation. To overcome this problem, indium tin oxide (ITO) conductive glass is used to optimize the vacuum system in linear ion trap system to restrain the shift of stray electric ﬁeld. By measuring and calculating, the stray electric ﬁeld shift is minimized to 1.63 µV·m−1 ·s −1 , after optimization, which is around 1/40 of the previous work 57.7 µV·m−1 ·s −1 , so that the inﬂuence of micromotion can be negligible during the long-time experiment, and the eﬀective time of experiment can be signiﬁcantly increased.

Key words: optical frequency standard, ion trap, conductive glass, micromotion, stray electric ?eld shift

CLC Number:

O433

WANG Miao , , CHEN Zheng , , HUANG Yao , , GUAN Hua , , GAO Kelin , ∗. Measurement and optimization of stray electric ﬁeld shifts of linear ion trap[J]. Chinese Journal of Quantum Electronics, 2023, 40(1): 127-132.

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Measurement and optimization of stray electric ﬁeld shifts of linear ion trap

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