基于汞离子（199Hg+）囚禁的四极线型离子阱径向囚禁势的研究

量子电子学报

基于汞离子（199Hg+）囚禁的四极线型离子阱径向囚禁势的研究

汪漫1,2,3，柳浩1,2，陈义和1,2，佘磊1,2，颜碧波1,2,3，李交美*1,2

（1.中国科学院武汉物理与数学研究所，湖北，武汉，430071； 2.中国科学院原子频标重点实验室，湖北，武汉，430071； 3.中国科学院大学，北京，100049）

出版日期:2019-01-28 发布日期:2019-01-17
通讯作者: jmlee@wipm.ac.cn
作者简介:汪漫（1989-），女，中国科学院武汉物理与数学研究所博士研究生。主要从事汞离子微波频标研究工作。E-mail：309470466@qq.com

Radial confinement potential investigation of the quadrupole linear ion trap based on trapped 199Hg+ ions

Wang Man1,2,3，Liu hao1,2，Chen Yi-he1,2，She Lei1,2 ，Yan Bi-bo1,2,3and Li Jiao-mei*1,2

（1.Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China； 2. Key Laboratory of Atomic Frequency Standard, Chinese Academy of Sciences, Wuhan 430071, China；3.Graduate University of Chinese Academy of Sciences, Beijing 100049, China.）

Published:2019-01-28 Online:2019-01-17

摘要/Abstract

摘要： 在满足Mathieu方程稳定性条件的情况下，研究了汞离子（199Hg+）微波频标径向囚禁势对四极线型离子阱中囚禁汞离子（199Hg+）数的影响。研究发现，随着离子阱中射频幅度的增加，荧光信号的强度增大，辐射荧光谱线宽变窄，中心频率向左偏移。由此，设计了小型化的射频源以实现汞离子（199Hg+）微波频标四极线型离子阱中离子的稳定囚禁。对小型化射频源的幅度稳定度进行了测试，其稳定度的标准差估算结果是0.51V。电路体积仅0.1L, 功耗约 3.5W，能够满足小型化汞离子（199Hg+）微波频标制备需要。

关键词: 四极线型离子阱, 囚禁汞离子, 稳定度, 小型化

Abstract: The effect of radial confinement potential on the trapped 199Hg+ ion number in quadrupole linear ion trap was studied through experiments according to the stability condition of Mathieu equation. It is found that, as the radial confinement potential increases, the intensity of fluorescence becomes larger, the spectrum width becomes narrower, and the center frequency becomes smaller. Then, a miniaturized radio frequency (RF) source was designed to guarantee the stability of trapped ion number in quadrupole linear ion trap for the microwave 199Hg+ ion frequency standards. The Amplitude stability of the RF source is 0.51V expressed as standard deviation（SD）. The volume of the RF source is 0.1L, and the power consumption is about 3.5W which can meet the requirements of the microwave 199Hg+ ion frequency standards miniaturization.

Key words: quadrupole linear ion trap, trapped 199Hg+ ions, stability, miniaturized

汪漫1,2,3，柳浩1,2，陈义和1,2，佘磊1,2，颜碧波1,2,3，李交美*1,2. 基于汞离子（199Hg+）囚禁的四极线型离子阱径向囚禁势的研究[J]. 量子电子学报.

Wang Man1,2,3，Liu hao1,2，Chen Yi-he1,2，She Lei1,2,Yan Bi-bo1,2,3and Li Jiao-mei*1,2. Radial confinement potential investigation of the quadrupole linear ion trap based on trapped 199Hg+ ions[J]. Chinese Journal of Quantum Electronics.

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