7 N ov 2 01 1 Optical repumping of triplet P - states enhances magneto - optical trapping of ytterbium atoms

نویسندگان

  • Jun Woo Cho
  • Han-gyeol Lee
  • Sangkyung Lee
  • Jaewook Ahn
  • Won-Kyu Lee
  • Dai-Hyuk Yu
  • Sun Kyung Lee
  • Chang Yong Park
چکیده

Radiative decay from the excited 1P1 state to metastable 3P2 and 3P0 states is expected to limit attainable trapped atomic population in a magneto-optic trap of ytterbium (Yb) atoms. In experiments we have carried out with optical repumping of 3P0,2 states to 3P1, we observe enhancement of trapped atoms yield in the excited 1P1 state. The individual decay rate to each metastable state is measured and the results show an excellent agreement with the theoretical values.

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تاریخ انتشار 2011