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Tuning the velocity and flux of a low-velocity intense source of cold atomic beam
Chen, Shu; Li, Ying-Ying; Yan, Xue-Shu; Xue, Hong-Bo; Feng, Yan-Ying; Feng, YY (reprint author), Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China.
Department空间科学部
Source PublicationCHINESE PHYSICS B
2017
Volume26Issue:11Pages:113703
ISSN1674-1056
Language英语
KeywordAtomic Source Low-velocity Intensity Source (Lvis) Laser Cooling Light Polarization
AbstractWe 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.
Indexed BySCI ; EI ; CSCD
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6080
Collection空间科学部
Corresponding AuthorFeng, YY (reprint author), Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
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.
APA Chen, Shu,Li, Ying-Ying,Yan, Xue-Shu,Xue, Hong-Bo,Feng, Yan-Ying,&Feng, YY .(2017).Tuning the velocity and flux of a low-velocity intense source of cold atomic beam.CHINESE PHYSICS B,26(11),113703.
MLA Chen, Shu,et al."Tuning the velocity and flux of a low-velocity intense source of cold atomic beam".CHINESE PHYSICS B 26.11(2017):113703.
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