期刊
PHYSICAL REVIEW A
卷 91, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.91.053405
关键词
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资金
- Korea Research Institute of Standards and Science (KRISS)
- National Research Council of Science & Technology (NST), Republic of Korea [K15030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We propose and demonstrate a type of magneto-optical trap (MOT) for alkaline-earth-metal-like ( AEML) atoms where the narrow intercombination S-1(0) -> P-3(1) transition and the broad S-1(0) -> P-1(1) transition are spatially arranged into a core-shell configuration. Our scheme resolves the main limitations of previously adopted MOT schemes for AEML atoms, leading to significant increases in both the loading rate and the steady-state atom number. We apply this scheme to our experimental setup with Yb-174 atoms and observe more than two orders of magnitude improvement in the loading rate and tenfold improvement in the steady-state atom number compared to a conventional intercombination MOT scheme. This technique could be readily extended to other AEML atoms to increase the statistical sensitivity of many different types of precision experiments.
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