Efficient loading of ultracold sodium atoms in an optical dipole trap from a high power fiber laser

We report on a research of the loading of ultracold sodium atoms in an optical dipole trap, generated by two beams from a high power fiber laser. The effects of optical trap light power on atomic number, temperature and phase space density are experimentally investigated. A simple theory is proposed...

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Bibliographic Details
Published in:Chinese physics B 2021-02, Vol.30 (3), p.33701-270
Main Authors: Xu, Jing, Liu, Wen-Liang, Zheng, Ning-Xuan, Li, Yu-Qing, Wu, Ji-Zhou, Li, Peng, Fu, Yong-Ming, Ma, Jie, Xiao, Lian-Tuan, Jia, Suo-Tang
Format: Article
Language:English
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Summary:We report on a research of the loading of ultracold sodium atoms in an optical dipole trap, generated by two beams from a high power fiber laser. The effects of optical trap light power on atomic number, temperature and phase space density are experimentally investigated. A simple theory is proposed and it is in good accordance with the experimental results of the loaded atomic numbers. In a general estimation, an optimal value for each beam with a power of 9 W from the fiber laser is achieved. Our results provide a further understanding of the loading process of optical dipole trap and laid the foundation for generation of a sodium Bose–Einstein condensation with an optical dipole trap.
ISSN:1674-1056
DOI:10.1088/1674-1056/abc678