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题名: Tuning the velocity and flux of a low-velocity intense source of cold atomic beam
作者: Chen, Shu; Li, Ying-Ying; Yan, Xue-Shu; Xue, Hong-Bo; Feng, Yan-Ying
作者部门: 空间科学部
通讯作者: Feng, YY (reprint author), Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China.
关键词: atomic source ; low-velocity intensity source (LVIS) ; laser cooling ; light polarization
刊名: CHINESE PHYSICS B
ISSN号: 1674-1056
出版日期: 2017
卷号: 26, 期号:11, 页码:113703
收录类别: SCI ; EI
项目资助者: National Natural Science Foundation of China [61473166, 41404146]
英文摘要: We investigate experimentally and numerically the quantitative dependence of characteristics of a low-velocity intensity source (LVIS) of atomic beam on light parameters, especially the polarization of cooling laser along the atomic beam axis (pushing beam). By changing the polarization of the pushing beam, the longitudinal mean velocity of a rubidium atomic beam can be tuned continuously from 10 to 20 m/s and the flux can range from 3 x 10(8) to 1 x 10(9) atoms/s, corresponding to the maximum sensitivity of the velocity with respect to the polarization angle of 20 (m/s)/rad and the mean sensitivity of flux of 1.2 x 10(9) (atoms/s)/rad. The mechanism is explained with a Monte-Carlo based numerical simulation method, which shows a qualitative agreement with the experimental result. This is also a demonstration of a method enabling the fast and continuous modulation of a low-velocity intense source of cold atomic beam on the velocity or flux, which can be used in many fields, like the development of a cold atomic beam interferometer and atom lithography.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6080
Appears in Collections:空间科学部_期刊论文

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Recommended Citation:
Chen, Shu,Li, Ying-Ying,Yan, Xue-Shu,et al. Tuning the velocity and flux of a low-velocity intense source of cold atomic beam[J]. CHINESE PHYSICS B,2017,26(11):113703.
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