Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 35: Precision Spectroscopy of Atoms and Ions III (joint session A/Q)
Q 35.2: Vortrag
Mittwoch, 12. März 2025, 11:30–11:45, HS PC
Upper-level spectroscopy of cold trapped 174Yb atoms for their preparation in the metastable 3P0 state — •Ke Li, Gabriel Dick, Saran Shaju, and Jürgen Eschner — Universität des Saarlandes, Saarbrücken,Germany
We trap and cool 174 Yb atoms in a magneto-optical trap (MOT) inside a high-finesse cavity for exploring atom-cavity interaction on the 1S0 - 3P0 clock transition at 578 nm[1,2]. For populating the metastable 3P0 level, we employ repumping lasers resonantly driving the 3P1 - 3S1 and 3P2- 3S1 transitions, thereby transferring all atoms from 3P1, 3P2 states to 3P0 state via 3S1.In order to characterize how effective the repumping process is, the time-resolved measurements including repumping rate, population dynamics are studied, which also facilitating detailed investigations of the clock transition.
[1]D. Meiser, Jun Ye, D. R. Carlson, and M. J. Holland Phys. Rev. Lett. 102, 163601, 2009
[2]H. Gothe, D. Sholokhov, A. Breunig, M. Steinel, and J. Eschner.
Phys. Rev. A, 99, 0134 15, 2019.
Keywords: Ultra-cold atoms; MOT; Spectroscopy; Repumping lasers