Transport of Cold Atoms in Double Magneto-Optical Trap with Continuous-Wave Large-Detuning Transfer Laser Beam

Jing Wang; Shubin Yan; Tao Geng; Tiancai Zhang; Junmin Wang

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Transport of Cold Atoms in Double Magneto-Optical Trap with Continuous-Wave Large-Detuning Transfer Laser Beam

Jing Wang,Shubin Yan,Tao Geng,Tiancai Zhang,Junmin Wang * #

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University

*Correspondence author

#Submitted by

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Funding: 国家自然科学基金项目,国家自然科学基金重点项目,国家重大基础科学研究计划课题,山西省自然科学基金（No.60578018,10434080,2006CB921102,2007011003）

Opened online:17 October 2007

Accepted by: none

Citation: Jing Wang,Shubin Yan,Tao Geng.Transport of Cold Atoms in Double Magneto-Optical Trap with Continuous-Wave Large-Detuning Transfer Laser Beam[OL]. [17 October 2007] http://en.paper.edu.cn/en_releasepaper/content/15745

We have established cesium double magneto-optical trap (double MOT) system, and realized transferring cold atoms from the vapor-cell MOT to the ultra-high-vacuum (UHV) MOT by continuous transfer laser. On the base of our former work about transferring atoms by weak resonance laser, we extended red detuning of transfer beam to 2.5GHz, and increased the laser power. We have studied about the transport of cold atoms. It is demonstrated that if the detuning is far off resonance the stronger laser power would make the transport much more efficient. It is induced by the confinement and guide of cold atoms due to the transverse dipole force of the transfer beam.

Keywords:cold atoms, magneto-optical trap (MOT), double magneto-optical trap (double MOT), continuous-wave transfer laser, large detuning

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