分段线形离子阱中离子的囚禁及微运动补偿  

Trapping and micromotion compensation of ions in segmented linear ion trap

作　　者：潘勇 李海霞 何胜国[1,2] 童昕[1,2] PAN Yong1,2,3, LI Haixia1,2,3, HE Shengguo1,2, TONG Xin1,2(1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 2 Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室,湖北武汉430071 [2]中国科学院武汉物理与数学研究所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　　处：《量子电子学报》2018年第4期424-431,共8页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金;11474317~~

摘　　要：设计了一套用于分段线形离子阱囚禁离子及微运动补偿的射频-静电耦合电源电路,实现了钙离子在离子阱中的囚禁.通过CCD相机观察离子发出的荧光确定离子晶体位置。利用离子阱中12段极杆上静态电压的独立控制实现了离子晶体在三维空间中的精密控制,减小了射频调制的微运动。此离子囚禁系统可进一步确定离子晶体的物理性质,如离子的宏运动频率、离子晶体的温度分布等,并实现多组份离子晶体的囚禁。A set of RF-electrostatic coupling power supply circuit for segmented linear ion trap is designed for trapping ions and micromotion compensation. The trapping of calcium ions in ion trap is realized. The ion crystal position is determined by observing the fluorescence emitted by ions with CCD camera. The precise control of ion crystal in three-dimensional space is realized by controlling the static voltage on the 12-segment poles in ion trap independently, which reduces the micromotion caused by RF modulation. The ions trapping system can further determine the physical properties of ion crystals, such as the secular motion frequency of ions in ion trap, temperature distribution of ion crystal, and the trapping of multi-component ion crystal.

关 键 词：原子光学 线形离子阱 微运动补偿 射频电源 程控直流电源 

分 类 号：O431[机械工程—光学工程]