3-D analysis of laser-cooling Cr atoms
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1.
Department of Electrical Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China
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Corresponding author:
XIONG Xian-ming, xmxiong@guet.edu.cn
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Received Date:
2012-01-07
Accepted Date:
2012-03-31
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Abstract
In order to study the 3-D features of Cr atoms in laser cooling field,the interaction process of Cr atom and laser cooling field was analyzed.Based on the semi-classical theory of Doppler and polarization gradient force,the fourth-order Runge-Kutta algorithm was adopted to simulate 3-D trajectory of Cr atoms,at the same time,three-dimension distribution of them was also obtained.After passing through laser cooling field,the divergence angle of Cr atomic beam becomes smaller,and the corresponding velocity also decreases.The results show that the three-dimension features of Cr atoms agree with the two-dimension cases,and can provide more comprehensive,richer cooling information.
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