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Investigation of cold collision in a Rb-Cs magneto-optical trap
JI Zhonghua,ZHAO Yanting * #
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan 030006
*Correspondence author
#Submitted by
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Funding: New Teacher Fund of Ministry of Education of China （No.200801081021）, National Natural Science Foundation of China （No.No.60808009）
Opened online: 8 March 2012
Accepted by: none
Citation: JI Zhonghua,ZHAO Yanting.Investigation of cold collision in a Rb-Cs magneto-optical trap[OL]. [ 8 March 2012] http://en.paper.edu.cn/en_releasepaper/content/4469074
 
 
We have measured the interspecies trap loss rate coefficient. The experiment was measured the rubidium atom trap loss rate coefficient as a function of Rb trapping laser intensity by loading process for rubidium atom in either presence or absence of cesium atomic cloud. The trap loss rate coefficient decreases as the Rb trapping laser intensity increases where the trap loss caused by hyperfine-state changing collision is suppressed due to the increasing Rb trap depth. The corresponding Rb trapping laser intensities are 7.8 mW/cm2, 12.1 mW/cm2 and 34.7 mW/cm2 respectively. The experimental results agree with the calculated critical intensity IC of Rb trapping laser by a simple Doppler model.
Keywords:atom-molecular physics; cold collision; magneto-optical trap
 
 
 

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