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Chinese Journal of Lasers, Volume. 50, Issue 5, 0512001(2023)

Development of Radio‐frequency Antenna Inside Ultra‐High‐Vacuum Chamber for Cold Atom Physics Rack of Space Station

Yu Xie1,2, Yuanci Gao3, Shuyu Zhou4, Su Fang1, Tang Li1, Ang’ang Liang1,2, Wenwen Li1,2, Mingshan Huang1,2, Wenli Wang1, Bin Wang1、*, and Liang Liu1、**
Author Affiliations
  • 1Aerospace Laser Engineering Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan , China
  • 4Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (29)
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    Figures & Tables(8)
    Structural diagram of antenna and magneto-optical trap

    Fig. 1. Structural diagram of antenna and magneto-optical trap

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    Spatial distribution of RF magnetic field generated by antenna when excitation signal power is 3 W and frequency is 100 MHz

    Fig. 2. Spatial distribution of RF magnetic field generated by antenna when excitation signal power is 3 W and frequency is 100 MHz

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    RF signal distributions. (a) RF magnetic field distributions along axis; (b) RF intensity versus frequency at center of chamber

    Fig. 3. RF signal distributions. (a) RF magnetic field distributions along axis; (b) RF intensity versus frequency at center of chamber

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    Simulated and measured results for antenna S-parameters

    Fig. 4. Simulated and measured results for antenna S-parameters

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    Transmission coefficient from excitation port to probe port with model of probe antenna shown in inset

    Fig. 5. Transmission coefficient from excitation port to probe port with model of probe antenna shown in inset

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    Decay of atom number in O.D. trap

    Fig. 6. Decay of atom number in O.D. trap

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    Optical depths under different RF excitation powers. (a) 0% of full-load power; (b) 7.5% of full-load power; (c) 12.5% of full-load power; (d) 25% of full-load power; (e) 50% of full-load power; (f) 100% of full-load power

    Fig. 7. Optical depths under different RF excitation powers. (a) 0% of full-load power; (b) 7.5% of full-load power; (c) 12.5% of full-load power; (d) 25% of full-load power; (e) 50% of full-load power; (f) 100% of full-load power

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    2D Gaussian fitting results. (a) Final PSD; (b) final atomic temperature; (c) atomic cloud size in trap

    Fig. 8. 2D Gaussian fitting results. (a) Final PSD; (b) final atomic temperature; (c) atomic cloud size in trap

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    Yu Xie, Yuanci Gao, Shuyu Zhou, Su Fang, Tang Li, Ang’ang Liang, Wenwen Li, Mingshan Huang, Wenli Wang, Bin Wang, Liang Liu. Development of Radio‐frequency Antenna Inside Ultra‐High‐Vacuum Chamber for Cold Atom Physics Rack of Space Station[J]. Chinese Journal of Lasers, 2023, 50(5): 0512001

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    Paper Information

    Category: quantum optics

    Received: Mar. 29, 2022

    Accepted: May. 25, 2022

    Published Online: Dec. 26, 2022

    The Author Email: Wang Bin (liang.liu@siom.ac.cn), Liu Liang (wangbin@siom.ac.cn)

    DOI:10.3788/CJL220713

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology