Narrow-line magneto-optical trap for europium

@inproceedings{Miyazawa2021NarrowlineMT,
  title={Narrow-line magneto-optical trap for europium},
  author={Yuki Miyazawa and Ryotaro Inoue and Hiroki Matsui and K. Takanashi and Mikio Kozuma},
  year={2021}
}
We report on the realization of a magneto-optical trap (MOT) for europium atoms using a narrowline cooling transition with a natural linewidth of 97 kHz. Our starting point is continuous capturing and cooling of optically pumped metastable europium atoms. We have employed simultaneous MOT for the metastable and ground-state atoms. The trapped metastable atoms are successively pumped back to the ground state and then continuously loaded to the narrow-line MOT, where up to 4.7×10 atoms are… 

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