### Transverse laser cooling of a thermal atomic beam of dysprosiumTransverse laser cooling of a thermal atomic beam of dysprosium

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 Author Leefer, N. ♦ Cingöz, A. ♦ Gerber-Siff, B. ♦ Sharma, Arijit ♦ Torgerson, J. R. ♦ Budker, D. Source arXiv.org Content type Text File Format PDF Date of Submission 2009-12-10 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword Physics - Atomic Physics ♦ physics:physics Abstract A thermal atomic beam of dysprosium (Dy) atoms is cooled using the $4f^{10}6s^2 (J=8) \to 4f^{10}6s6p (J=9)$ transition at 421 nm. The cooling is done via a standing light wave orthogonal to the atomic beam. Efficient transverse cooling to the Doppler limit is demonstrated for all observable isotopes of dysprosium. Branching ratios to metastable states are demonstrated to be $<5\times10^{-4}$. A scheme for enhancement of the nonzero-nuclear-spin-isotope cooling, as well as a method for direct identification of possible trap states, is proposed. Educational Use Research Learning Resource Type Article Page Count 7