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Preliminary Results on the First Optical Molasses of Cs Atoms in China |
HOU Ji-dong;LI Yi-min;YANG Dong-hai;WANG Yi-qiu |
Department of Electronics, Peking University, Beijing 100871 |
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Cite this article: |
HOU Ji-dong, LI Yi-min, YANG Dong-hai et al 1998 Chin. Phys. Lett. 15 413-415 |
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Abstract Based on an improved optical system, which consists of six laser diodes with two injection locking stages and control set-ups of the intensity and frequency of the laser, we have achieved the first optical molasses in China. The time-of-flight (TOF) signal of the cloud of Cs atoms has been obtained, and an analytical-formula for measuring the temperature of the atomic cloud from its TOF signal is given. The lowest temperature of the cloud of Cs atoms is measured to be 10μK.
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Keywords:
32.80.Pj
42.50.Vk
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Published: 01 June 1998
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