Please wait a minute...
Chin. Phys. B, 2009, Vol. 18(8): 3404-3408    DOI: 10.1088/1674-1056/18/8/046
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Single atoms transferring between a magneto-optical trap and a far-off-resonance optical dipole trap

He Jun(何军), Wang Jing(王婧), Yang Bao-Dong(杨保东), Zhang Tian-Cai(张天才), and Wang Jun-Min(王军民)
State Key Laboratory of Quantum Optics and Quantum Optics Devices (Shanxi University), and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
Abstract  Based on our work on single cesium atoms trapped in a large-magnetic-gradient vapour-cell magneto-optical trap (MOT), the signal-to-noise ratio (SNR) is remarkably improved. Also a far-off-resonance optical dipole trap (FORT) formed by a strongly-focused 1064~nm single frequency Nd:YVO4 laser beam is introduced. One cesium atom is prepared in the MOT, and then it can transfer successfully between the MOT and the FORT which is overlapped with the MOT. Utilizing the effective transfer, the lifetime of single atoms trapped in the FORT is measured to be 6.9±0.3 s. Thus we provide a system where the atomic qubit can be coherently manipulated.
Keywords:  single atoms      magneto-optical trap      far-off-resonance optical dipole trap      lifetime of single atoms  
Received:  17 October 2008      Revised:  19 November 2008      Accepted manuscript online: 
PACS:  37.10.De (Atom cooling methods)  
Fund: Project partially supported by the National Natural Science Foundation of China (Grant Nos 60578018 and 10434080), the project for excellent research team from the National Natural Science Foundation of China (Grant No 60821004), the Program for New Century Excellent Talents of the Education Ministry of China (Grant No NCET-07-0524), the State Basic Key Research Program of China (Grant No 2006CB921102), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No 20070108003), the Natural Science Foundation of Shanxi Province, China (Grant No 2007011003), and the Scientific Research Funds for Returned Scholars Abroad of Shanxi Province, China.

Cite this article: 

He Jun(何军), Wang Jing(王婧), Yang Bao-Dong(杨保东), Zhang Tian-Cai(张天才), and Wang Jun-Min(王军民) Single atoms transferring between a magneto-optical trap and a far-off-resonance optical dipole trap 2009 Chin. Phys. B 18 3404

[1] Enhanced cold mercury atom production with two-dimensional magneto-optical trap
Ye Zhang(张晔), Qi-Xin Liu(刘琪鑫), Jian-Fang Sun(孙剑芳), Zhen Xu(徐震), and Yu-Zhu Wang(王育竹). Chin. Phys. B, 2022, 31(7): 073701.
[2] Enhanced optical molasses cooling for Cs atoms with largely detuned cooling lasers
Di Zhang(张迪), Yu-Qing Li(李玉清), Yun-Fei Wang(王云飞), Yong-Ming Fu(付永明), Peng Li(李鹏), Wen-Liang Liu(刘文良), Ji-Zhou Wu(武寄洲), Jie Ma(马杰), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂). Chin. Phys. B, 2020, 29(2): 023203.
[3] BaF radical: A promising candidate for laser cooling and magneto-optical trapping
Liang Xu(许亮), Bin Wei(魏斌), Yong Xia(夏勇), Lian-Zhong Deng(邓联忠), Jian-Ping Yin(印建平). Chin. Phys. B, 2017, 26(3): 033702.
[4] Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing
Jia-Qiang Huang(黄家强), Xue-Shu Yan(颜学术), Chen-Fei Wu(吴晨菲), Jian-Wei Zhang(张建伟), Li-Jun Wang(王力军). Chin. Phys. B, 2016, 25(6): 063701.
[5] Microwave-mediated magneto-optical trap for polar molecules
Dizhou Xie(谢笛舟), Wenhao Bu(卜文浩), Bo Yan(颜波). Chin. Phys. B, 2016, 25(5): 053701.
[6] Efficient loading of a single neutral atom into an optical microscopic tweezer
He Jun (何军), Liu Bei (刘贝), Diao Wen-Ting (刁文婷), Wang Jie-Ying (王杰英), Jin Gang (靳刚), Wang Jun-Min (王军民). Chin. Phys. B, 2015, 24(4): 043701.
[7] Improved atom number with a dual color magneto–optical trap
Cao Qiang (曹强), Luo Xin-Yu (罗鑫宇), Gao Kui-Yi (高奎意), Wang Xiao-Rui (王晓锐), Chen Dong-Min (陈东敏), Wang Ru-Quan (王如泉). Chin. Phys. B, 2012, 21(4): 043203.
[8] Investigation of ultracold atoms and molecules in a dark magneto-optical trap
Wang Li-Rong (汪丽蓉), Ji Zhong-Hua (姬中华), Yuan Jin-Peng (元晋鹏), Yang Yan (杨艳), Zhao Yan-Ting (赵延霆), Ma Jie (马杰), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂 ). Chin. Phys. B, 2012, 21(11): 113402.
[9] Dependence of loading time on control parameters in a standard vapour–loaded magneto–optical trap
Zhang Yi-Chi(张一驰), Wu Ji-Zhou(武寄洲), Li Yu-Qing(李玉清), Ma Jie(马杰),Wang Li-Rong(汪丽蓉), Zhao Yan-Ting(赵延霆), Xiao Lian-Tuan(肖连团), and Jia Suo-Tang(贾锁堂) . Chin. Phys. B, 2011, 20(12): 123701.
[10] A cold 87Rb atomic beam
Wang Xiao-Jia(王晓佳), Feng Yan-Ying(冯焱颖), Xue Hong-Bo(薛洪波), Zhou Zhao-Ying(周兆英), and Zhang Wen-Dong(张文栋) . Chin. Phys. B, 2011, 20(12): 126701.
[11] Observation of single neutral atoms in a large-magnetic-gradient vapour-cell magneto-optical trap
Wang Jing (王婧), He Jun (何军), Qiu Ying (邱英), Yang Bao-Dong (杨保东), Zhao Jiang-Yan (赵江艳), Zhang Tian-Cai (张天才), Wang Jun-Min (王军民). Chin. Phys. B, 2008, 17(6): 2062-2065.
[12] Light-induced evaporative cooling in a magneto-optical trap
Ma Hong-Yu (马红玉), Cheng Hua-Dong (成华东), Wang Yu-Zhu (王育竹), Liu Liang (刘 亮). Chin. Phys. B, 2008, 17(11): 4180-4183.
[13] Continuously transferring cold atoms in caesium double magneto-optical trap
Yan Shu-Bin(闫树斌), Geng Tao(耿涛), Zhang Tian-Cai(张天才), and Wang Jun-Min(王军民). Chin. Phys. B, 2006, 15(8): 1746-1751.
[14] Absorption spectroscopy of cold caesium atoms confined in a magneto-optical trap
Yan Shu-Bin (闫树斌), Liu Tao (刘涛), Geng Tao (耿涛), Zhang Tian-Cai (张天才), Peng Kun-Chi (彭堃墀), Wang Jun-Min (王军民). Chin. Phys. B, 2004, 13(10): 1669-1673.
No Suggested Reading articles found!