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Transferring single cesium atoms between a magneto-optical trap and a far-off-resonance optical dipole trap
He Jun,Wang Jing,Yang Baodong,Zhao Jiangyan,Zhang Tiancai,Wang Junmin * #
State Key Laboratory of Quantum Optics and Quantum Optics Devices (Shanxi University), and Institute of Opto-Electronics, Shanxi University
*Correspondence author
#Submitted by
Subject:
Funding: 国家自然科学基金,国家自然科学基金,国家自然科学基金,教育部新世纪优秀人才支持计划,教育部博士点基金(No.60578018,10434080,60821004,NCET-07-0524,20070108003)
Opened online:10 October 2008
Accepted by: none
Citation: He Jun,Wang Jing,Yang Baodong.Transferring single cesium atoms between a magneto-optical trap and a far-off-resonance optical dipole trap[OL]. [10 October 2008] http://en.paper.edu.cn/en_releasepaper/content/24702
 
 
Based on our work of trapping single cesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap (MOT), a remarkable improvement in the signal-to-noise ratio (SNR) has been made. Also a far-off-resonance optical dipole trap (FORT) formed by a strongly-focused 1064nm single frequency Nd:YVO4 laser beam is introduced. One cesium atom is prepared in the MOT, and then the atom can be transferred successfully between the MOT and the FORT which is overlapped with the MOT. Utilizing the effective transferring, the lifetime of trapped single atoms in the FORT is measured, and it is 6.9 s ± 0.3 s. It provides a system allowing us to manipulate the atomic qubit coherently.
Keywords:single atoms;magneto-optical trap;far-off-resonance optical dipole trap;lifetime of trapped single atoms
 
 
 

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