High-Resolution Photoassociation Spectroscopy of Ultracold Ytterbium Atoms by Using the Intercombination Transition
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
- Department of Electronic Science and Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8530 (Japan)
We observed high-resolution photoassociation spectra of laser-cooled ytterbium (Yb) atoms in the spin-forbidden {sup 1}S{sub 0}-{sup 3}P{sub 1} intercombination line. The rovibrational levels in the 0{sub u}{sup +} state were measured for red detunings of the photoassociation laser ranging from 2.9 MHz to 1.97 GHz with respect to the atomic resonance. The rotational splitting of the vibrational levels near the dissociation limit were fully resolved due to the sub-MHz linewidth of the spectra in contrast to previous measurements using the spin-allowed singlet transition. In addition, from a comparison between the spectra of {sup 174}Yb and those of {sup 176}Yb, a d-wave shape resonance for {sup 174}Yb is strongly suggested.
- OSTI ID:
- 20777155
- Journal Information:
- Physical Review Letters, Vol. 96, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.96.153201; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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