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Optical production of stable ultracold Sr288 molecules
Reinaudi, G Osborn, CB McDonald, M Kotochigova, S Zelevinsky, T
Reinaudi, G
Osborn, CB
McDonald, M
Kotochigova, S
Zelevinsky, T
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2012-09-13
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10.1103/PhysRevLett.109.115303
Abstract
We have produced large samples of stable ultracold Sr288 molecules in the electronic ground state in an optical lattice. The fast, all-optical method of molecule creation involves a near-intercombination-line photoassociation pulse followed by spontaneous emission with a near-unity Franck-Condon factor. The detection uses excitation to a weakly bound electronically excited vibrational level corresponding to a very large dimer and yields a high-Q molecular vibronic resonance. This is the first of two steps needed to create deeply bound Sr288 for frequency metrology and ultracold chemistry. © 2012 American Physical Society.
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Physical Review Letters
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