SIOM OpenIR  > 量子光学重点实验室
Direct loading of atoms from a macroscopic quadrupole magnetic trap into a microchip trap
Cheng J(程俊); Zhang JF(张敬芳); Xu XP(许忻平); Zhang HC(张海潮); Wang YZ(王育竹); zhanghc@siom.ac.cn; yzwang@mail.shcnc.ac.cn
2017
Source PublicationChin. Phys. B
Volume26Issue:3
AbstractWe demonstrate the direct loading of cold atoms into a microchip 2-mm Z-trap, where the evaporative cooling can be performed efficiently, from a macroscopic quadrupole magnetic trap with a high loading efficiency. The macroscopic quadrupole magnetic trap potential is designed to be moveable by controlling the currents of the two pairs of anti-Helmholtz coils. The cold atoms are initially prepared in a standard six-beam magneto-optical trap and loaded into the macroscopic quadrupole magnetic trap, and then transported to the atom chip surface by moving the macroscopic trap potential. By means of a three-dimensional absorption imaging system, we are able to optimize the position alignment of the atom cloud in the macroscopic trap and the microchip Z-shaped wire. Consequently, with a proper magnetic transfer scheme, we load the cold atoms into the microchip Z-trap directly and efficiently. The loading efficiency is measured to be about 50%. This approach can be used to generate appropriate ultracold atoms sources, for example, for a magnetically guided atom interferometer based on atom chip.
SubtypeArticle
Department量光
DOI10.1088/1674-1056/26/3/033701
Funding OrganizationNational Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348]
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348] ; National Natural Science Foundation of China [11604348]
WOS IDWOS:000396129200018
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Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27775
Collection量子光学重点实验室
Corresponding Authorzhanghc@siom.ac.cn; yzwang@mail.shcnc.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Cheng J,Zhang JF,Xu XP,et al. Direct loading of atoms from a macroscopic quadrupole magnetic trap into a microchip trap[J]. Chin. Phys. B,2017,26(3).
APA 程俊.,张敬芳.,许忻平.,张海潮.,王育竹.,...&yzwang@mail.shcnc.ac.cn.(2017).Direct loading of atoms from a macroscopic quadrupole magnetic trap into a microchip trap.Chin. Phys. B,26(3).
MLA 程俊,et al."Direct loading of atoms from a macroscopic quadrupole magnetic trap into a microchip trap".Chin. Phys. B 26.3(2017).
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