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arXiv · 0808.3434

Two-photon photoassociative spectroscopy of ultracold 88-Sr

Y. N. Martinez de Escobar·P. G. Mickelson·P. Pellegrini·S. B. Nagel·A. Traverso·M. Yan·R. Cote·T. C. Killian
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Abstract

We present results from two-photon photoassociative spectroscopy of the least-bound vibrational level of the X$^1Σ_g^+$ state of the $^{88}$Sr$_2$ dimer. Measurement of the binding energy allows us to determine the s-wave scattering length, $a_{88}=-1.4(6) a_0$. For the intermediate state, we use a bound level on the metastable $^1S_0$-$^3P_1$ potential, which provides large Franck-Condon transition factors and narrow one-photon photoassociative lines that are advantageous for observing quantum-optical effects such as Autler-Townes resonance splittings.

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Y. N. Martinez de Escobar, P. G. Mickelson, P. Pellegrini, S. B. Nagel, A. Traverso, M. Yan, R. Cote, T. C. Killian. 2008-08-26. Two-photon photoassociative spectroscopy of ultracold 88-Sr. https://doi.org/10.1103/physreva.78.062708

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