Chinese Optics, Volume. 18, Issue 3, 415(2025)
Rubidium atomic optical frequency standard based on two-photon transition
![(a) Energy level diagram and (b) atomic transition spectral line of two-photon transition of rubidium atom[68]](/Images/icon/loading.gif){kind=icon}
Fig. 1. (a) Energy level diagram and (b) atomic transition spectral line of two-photon transition of rubidium atom[68]
Fig. 3. (a) Two-photon transition optical clock scheme and (b) results of frequency stability reported by ATA, AFRL and other joint teams[55]
Table 1. Research status of representative optical frequency atomic clocks based on two-photon transition at home and abroad
View tableView in ArticleTable 1. Research status of representative optical frequency atomic clocks based on two-photon transition at home and abroad
国家 研究机构 年份 秒稳 (×10−13) 长稳 (×10−15) 文献 法国 LKB等 1998 3 10@1000 s [ 54 ]美国 AFRL等 2018 4 4@10000 s [ 55 ]NIST 2019 44 220@1000 s [ 82 ]2021 1.8 5@1600 s [ 81 ]贝塞尔大学 2022 5 3@106s [ 95 ]加拿大 拉瓦尔大学 2002 2.5 58@100 s [ 74 ]英国 NPL 2005 9.3 120@100 s [ 75 ]埃及 国家标准研究院 2016 40 680@1000 s [ 79 ]澳大利亚 阿德莱德大学等 2023 1.5 3@8000 s [ 85 ]中国 北京大学 2019 14 40@2000 s [ 88 ]中科院上海光机所 2023 15 290@500 s [ 57 ]中科院武汉精测院 2024 4 70@100 s [ 89 ]
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Jiong-yang ZHANG, Hao ZHAI, Ji WANG, Yu-hua XIAO, Hu DAI, Ji-qing LIAN, Shi-yu YANG, Jiang CHEN, Zhi-dong LIU. Rubidium atomic optical frequency standard based on two-photon transition[J]. Chinese Optics, 2025, 18(3): 415
Category: Review
Received: Jul. 12, 2024
Accepted: Oct. 8, 2024
Published Online: Jun. 16, 2025
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