Photoassociative Production and Trapping of Ultracold KRb Molecules

Details Photoassociative Production and Trapping of Ultracold KRb Molecules Photoassociative Production and Trapping of Ultracold KRb Molecules

2004-10-22

arxiv.org/abs/physics/0410220v1

Physics

Atomic Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.243005

We have produced ultracold heteronuclear KRb molecules by the process of photoassociation in a two-species magneto-optical trap. Following decay of the photoassociated KRb*, the molecules are detected using two-photon ionization and time-of-flight mass spectroscopy of KRb$^+$. A portion of the metastable triplet molecules thus formed are magnetically trapped. Photoassociative spectra down to 91 cm$^{-1}$ below the K(4$s$) + Rb (5$p_{1/2}$) asymptote have been obtained. We have made assignments to all eight of the attractive Hund's case (c) KRb* potential curves in this spectral region.

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