Issue 42, 2011

Formation of ultracold Rb2 molecules in the v′′ = 0 level of the a3Σ +u state via blue-detuned photoassociation to the 13Πg state

Abstract

We report on the observation of blue-detuned photoassociation in Rb2, in which vibrational levels are energetically above the corresponding excited atomic asymptote. 85Rb atoms in a MOT were photoassociated at short internuclear distance to levels of the 13Πg state at a rate of approximately 5 × 104 molecules s−1. We have observed most of the predicted vibrational levels for all four spin–orbit components; 0+g, 0g, 1g, and 2g, including levels of the 0+g outer well. These molecules decay to the metastable a3Σ+u state, some preferentially to the v′′ = 0 level, as we have observed for photoassociation to the v′ = 8 level of the 1g component.

Graphical abstract: Formation of ultracold Rb2 molecules in the v′′ = 0 level of the a3Σ+u state via blue-detuned photoassociation to the 13Πg state

Supplementary files

Article information

Article type
Paper
Submitted
02 May 2011
Accepted
17 Aug 2011
First published
12 Sep 2011

Phys. Chem. Chem. Phys., 2011,13, 18880-18886

Formation of ultracold Rb2 molecules in the v′′ = 0 level of the a3Σ+u state via blue-detuned photoassociation to the 13Πg state

M. A. Bellos, D. Rahmlow, R. Carollo, J. Banerjee, O. Dulieu, A. Gerdes, E. E. Eyler, P. L. Gould and W. C. Stwalley, Phys. Chem. Chem. Phys., 2011, 13, 18880 DOI: 10.1039/C1CP21383K

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