Efficient production and spectroscopy of ultracold potassium molecules in the electronic ground state

J.R. Ensher; A.N. Nikolov; E.E. Eyler; H. Wang; W.C. Stwalley; P.L. Gould

Quantum Electronics and Laser Science Conference
OSA Technical Digest (Optica Publishing Group, 2000),
paper QWK1

Efficient production and spectroscopy of ultracold potassium molecules in the electronic ground state

J.R. Ensher, A.N. Nikolov, E.E. Eyler, H. Wang, W.C. Stwalley, and P.L. Gould

Quantum Electronics and Laser Science Conference 2000

San Francisco, California United States
7–11 May 2000
ISBN: 1-55752-608-7

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Cold Molecules and Spectroscopy of Cold Atoms (QWK)

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J. R. Ensher, A. N. Nikolov, E. E. Eyler, H. Wang, W. C. Stwalley, and P. L. Gould, "Efficient production and spectroscopy of ultracold potassium molecules in the electronic ground state," in Quantum Electronics and Laser Science Conference, T. Gallagher, H. Van Driel, H. Gibbs, and D. Wineland, eds., OSA Technical Digest (Optica Publishing Group, 2000), paper QWK1.

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Abstract

We report results from an efficient new method for producing translationally cold (T < 1 mK) potassium molecules in the ground X $^{1} \sum_{g}^{+}$ electronic state. We use the two photon “R transfer" scheme ol Fig. I. conceptually similar to a proposal by Band and Julienne.² First, ultracold potassium atoms in a MOT are photoassociated at long range to the 1_g molecular electronic state, which correlates to the 1 ¹II_g state at short range.

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