Saturation of Cs2 Photoassociation in an Optical Dipole Trap

Abstract

We present studies of strong coupling in single-photon photoassociation of cesium dimers using an optical dipole trap. A thermodynamic model of the trap depletion dynamics is employed to extract absolute rate coefficents. From the dependence of the rate coefficient on the photoassociation laser intensity, we observe saturation of the photoassociation scattering probability at the unitarity limit in quantitative agreement with the theoretical model by Bohn and Julienne [Phys. Rev. A, 60, 414 (1999)]. Also the corresponding power broadening of the resonance width is measured. We could not observe an intensity dependent light shift in contrast to findings for lithium and rubidium, which is attributed to the absence of a p or d-wave shape resonance in cesium.

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• Observation of the Sign Reversal of the Magnetic Correlation in a Driven-Dissipative Fermi Gas in Double Wells
• Theoretical model for ultracold molecule formation via adaptive feedback control
• Pair Correlations and Photoassociation Dynamics of Two Atoms in an Optical Tweezer
• Photoassociation to the 2(1)Sigma(g)(+) state in ultracold 85Rb2 in the presence of a shape resonance
• Light Assisted Collisional Loss in a ${}^{85/87}$Rb Ultracold Optical Trap
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• Fano effect in an ultracold atom-molecule coupled system
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