Acta Optica Sinica, Volume. 35, Issue 6, 602002(2015)
Comparative Research of Measuring Methods of Rubidium Atom Transverse Relaxation Time
In order to accurately measure the short transverse relaxation time of alkali-metal atoms, three measuring methods are analyzed, which are modified free induction decay method, broadening-fitting method of magnetic resonance response curve and ratio-fitting method of transverse component of the magnetic moment in the rotating coordinate system. The transverse relaxation time of rubidium atom vapor in a cell in the magnitude of 10 μs is measured with the above three methods. Experimental results show that these three methods can reach the precision in the magnitude of 1 μs . Through analyzing the experimental condition, the modified free induction decay method and ratio-fitting method can give accurate transverse relaxation time for atomic magnetometer. And broadening-fitting method can be used to research the relaxation mechanism without light.
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Ding Zhichao, Yuan Jie, Li Yingying, Feng Wei, Wang Zhiguo. Comparative Research of Measuring Methods of Rubidium Atom Transverse Relaxation Time[J]. Acta Optica Sinica, 2015, 35(6): 602002
Category: Atomic and Molecular Physics
Received: Dec. 12, 2014
Accepted: --
Published Online: Apr. 20, 2015
The Author Email: Zhichao Ding (dingzc1991@qq.com)