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State Preparation in a Cold Atom Clock by Optical Pumping_上海光学精密机械研究所

上海光学精密机械研究所 免费考研网/2018-05-06

外文题目: State Preparation in a Cold Atom Clock by Optical Pumping
作者: Duan, Yu-Xiong; Wang, Bin; Xiang, Jing-Feng; Liu, Qian; Qu, Qiu-Zhi; Lu, De-Sheng; Liu, Liang
刊名: Chin. Phys. Lett.
年: 2017 卷: 34 期: 7 文章编号:73201
英文关键词:

CESIUM BEAM; FOUNTAIN
英文摘要:
We implement optical pumping to prepare cold atoms in our prototype of the Rb-87 space cold atom clock, which operates in the one-way mode. Several modifications are made on our previous physical and optical system. The effective atomic signal in the top detection zone is increased to 2.5 times with 87% pumping efficiency. The temperature of the cold atom cloud is increased by 1.4 mu K. We study the dependences of the effective signal gain and pumping efficiency on the pumping laser intensity and detuning. The effects of sigma transition are discussed. This technique may be used in the future space cold atom clocks.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1088/0256-307X/34/7/073201


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