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Issue 42, 2011
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Formation of ultracold metastable RbCs molecules by short-range photoassociation

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Abstract

Ultracold metastable RbCs molecules are observed in a double species magneto-optical trap through photoassociation near the Rb(5S1/2) + Cs(6P3/2) dissociation limit followed by radiative stabilization. The molecules are formed in their lowest triplet electronic state and are detected by resonance enhanced two-photon ionization through the previously unobserved (3)3Π ← a 3Σ+ band. The large rotational structure of the observed photoassociation lines is assigned to the lowest vibrational levels of the 0+ or 0 excited states correlated to the Rb(5P1/2) + Cs(6S1/2) dissociation limit. This demonstrates the possibility of inducing direct photoassociation in heteronuclear alkali-metal molecules at a short internuclear distance, as pointed out earlier [J. Deiglmayr et al., Phys. Rev. Lett., 2008, 101, 13304].

Graphical abstract: Formation of ultracold metastable RbCs molecules by short-range photoassociation

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Publication details

The article was received on 10 May 2011, accepted on 17 Jun 2011 and first published on 28 Jul 2011


Article type: Paper
DOI: 10.1039/C1CP21497G
Phys. Chem. Chem. Phys., 2011,13, 18905-18909

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    Formation of ultracold metastable RbCs molecules by short-range photoassociation

    C. Gabbanini and O. Dulieu, Phys. Chem. Chem. Phys., 2011, 13, 18905
    DOI: 10.1039/C1CP21497G

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