Long-Lifetime Optical Trapping of a ^(40)Ca^(+) Ion  

作　　者：Zheng Chen Miao Wang Baolin Zhang Huaqing Zhang Zixiao Ma Ruming Hu Yao Huang Kelin Gao Hua Guan 陈正;王淼;张宝林;张华青;马子晓;胡如明;黄垚;高克林;管桦(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;Key Laboratory of Atomic Frequency Standards,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Wuhan Institute of Quantum Technology,Wuhan 430206,China)

机构地区：[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 [4]Wuhan Institute of Quantum Technology,Wuhan 430206,China

出　　处：《Chinese Physics Letters》2024年第11期45-52,共8页中国物理快报（英文版）

基　　金：supported by the National Basic Research R&D Program of China(Grant Nos.2022YFB3904001 and 2018YFA0307500);the National Natural Science Foundation of China(Grant Nos.12022414 and 11934014);the Natural Science Foundation of Hubei Province(Grant No.2022CFA013);the CAS Project for Young Scientists in Basic Research(Grant Nos.YSBR-085 and YSBR-055)。

摘　　要：We have experimentally achieved the all-optical trapping of a ^(40)Ca^(+)ion.An optical dipole trap was established using a high-power,far-detuned,tightly focused laser with a wavelength of 532 nm.The single ^(40)Ca^(+)ion was trapped without any RF fields and demonstrated a long lifetime of over 3 s.In this experiment,we implemented several measures to improve the optical trapping probability,including focusing the dipole beam waist near the diffraction limit,precisely compensating for stray electric fields,and mitigating electron shelving in metastable states.The optical trapping of a ^(40)Ca^(+)ion eliminates the influence of micromotion induced by RF fields,potentially paving the way for development of all-optical trapping ion optical clocks.

关 键 词：TRAPPING DIPOLE eliminate 

分 类 号：O56[理学—原子与分子物理]