Setup of a dipole trap for all-optical trapping

doi:10.1088/1674-1056/abd767

中国物理B ›› 2021, Vol. 30 ›› Issue (5): 53702-053702.doi: 10.1088/1674-1056/abd767

Setup of a dipole trap for all-optical trapping

Miao Wang(王淼)^1,2,3, Zheng Chen(陈正)^1,2,3, Yao Huang(黄垚)^1,2, Hua Guan(管桦)^1,2, and Ke-Lin Gao(高克林)^1,2,3,†

1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of 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 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2020-11-13 修回日期:2020-12-17 接受日期:2020-12-30 出版日期:2021-05-14 发布日期:2021-05-14
通讯作者: Ke-Lin Gao E-mail:klgao@wipm.ac.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0307500 and 2017YFA0304401), the National Natural Science Foundation of China (Grant Nos. 11634013 and 11774388), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030100), the CAS Youth Innovation Promotion Association (Grant Nos. 2018364 and Y201963), the Science Fund for Distinguished Young Scholars of Hubei Province, China (Grant No. 2017CFA040) and the K. C. Wong Education Foundation (Grant No. GJTD-2019-15).

Setup of a dipole trap for all-optical trapping

Miao Wang(王淼)^1,2,3, Zheng Chen(陈正)^1,2,3, Yao Huang(黄垚)^1,2, Hua Guan(管桦)^1,2, and Ke-Lin Gao(高克林)^1,2,3,†

1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of 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 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2020-11-13 Revised:2020-12-17 Accepted:2020-12-30 Online:2021-05-14 Published:2021-05-14
Contact: Ke-Lin Gao E-mail:klgao@wipm.ac.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0307500 and 2017YFA0304401), the National Natural Science Foundation of China (Grant Nos. 11634013 and 11774388), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030100), the CAS Youth Innovation Promotion Association (Grant Nos. 2018364 and Y201963), the Science Fund for Distinguished Young Scholars of Hubei Province, China (Grant No. 2017CFA040) and the K. C. Wong Education Foundation (Grant No. GJTD-2019-15).

摘要/Abstract

摘要： Micromotion induced by the radio-frequency field contributes greatly to the systematic frequency shifts of optical frequency standards. Although different strategies for mitigating this effect have been proposed, trapping ions optically has the potential to provide a generic solution to the elimination of micromotion. This could be achieved by trapping a single ion in the dipole trap composed of a highpower laser field. Here, we present the setup of the dipole trap composed of a 532 nm laser at a power of 10 W aiming to optically trap a single ⁴⁰Ca⁺ and we observe an AC-Stark shift of the fluorescence spectrum line of ～22 MHz caused by the 532 nm dipole beam. The beam waist of the dipole laser is several microns, which would provide a dipole potential strong enough for all-optical trapping of a single ⁴⁰Ca⁺ ion.

关键词: dipole trap, AC-Stark shift, trap depth, all-optical trapping

Abstract: Micromotion induced by the radio-frequency field contributes greatly to the systematic frequency shifts of optical frequency standards. Although different strategies for mitigating this effect have been proposed, trapping ions optically has the potential to provide a generic solution to the elimination of micromotion. This could be achieved by trapping a single ion in the dipole trap composed of a highpower laser field. Here, we present the setup of the dipole trap composed of a 532 nm laser at a power of 10 W aiming to optically trap a single ⁴⁰Ca⁺ and we observe an AC-Stark shift of the fluorescence spectrum line of ～22 MHz caused by the 532 nm dipole beam. The beam waist of the dipole laser is several microns, which would provide a dipole potential strong enough for all-optical trapping of a single ⁴⁰Ca⁺ ion.

Key words: dipole trap, AC-Stark shift, trap depth, all-optical trapping

中图分类号: (Ion trapping)

37.10.Ty

37.10.-x (Atom, molecule, and ion cooling methods) 42.62.Fi (Laser spectroscopy)

Miao Wang(王淼), Zheng Chen(陈正), Yao Huang(黄垚), Hua Guan(管桦), and Ke-Lin Gao(高克林). Setup of a dipole trap for all-optical trapping[J]. 中国物理B, 2021, 30(5): 53702-053702.

Miao Wang(王淼), Zheng Chen(陈正), Yao Huang(黄垚), Hua Guan(管桦), and Ke-Lin Gao(高克林). Setup of a dipole trap for all-optical trapping[J]. Chin. Phys. B, 2021, 30(5): 53702-053702.

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Setup of a dipole trap for all-optical trapping

Setup of a dipole trap for all-optical trapping

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