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Setup of a dipole trap for all-optical trappingProject 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).
Chinese Physics B ( IF 1.7 ) Pub Date : 2021-05-20 , DOI: 10.1088/1674-1056/abd767
Miao Wang 1, 2, 3 , Zheng Chen 1, 2, 3 , Yao Huang 1, 2 , Hua Guan 1, 2 , Ke-Lin Gao 1, 2, 3
Affiliation  

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.

更新日期:2021-05-20
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