Two-photon photoassociative spectroscopy of ultracold 88-Sr

Details Two-photon photoassociative spectroscopy of ultracold 88-Sr Two-photon photoassociative spectroscopy of ultracold 88-Sr

2008-08-26

arxiv.org/abs/0808.3434v1

Physics

Atomic Physics

9 pages, 9 figures

Scientific paper

10.1103/PhysRevA.78.062708

We present results from two-photon photoassociative spectroscopy of the least-bound vibrational level of the X$^1\Sigma_g^+$ 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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