Wang, X.
, Wang, H.
, Gould, P.
, Stwalley, W.
, Tiesinga, E.
and Julienne, P.
(1998),
First Observation of the Pure Long-Range 1<sub>u</sub> State of an Alkali Dimer by Photoassociative spectroscopy, Physical Review A (Atomic, Molecular and Optical Physics)
(Accessed October 11, 2025)
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First Observation of the Pure Long-Range 1u State of an Alkali Dimer by Photoassociative spectroscopy
Published
Author(s)
X Wang, H Wang, P L. Gould, W C. Stwalley, ,
Abstract
The pure long-range 1u state of an alkali dimer is observed for the first time in 39K2 using photoassociative spectroscopy of ultracold atoms. High-resolution spectra for vibrational levels v = O to 7 are recorded by resonance-enhanced two-photon ionization. Strong rotation-hyperfine couplings are observed. Major molecular constants and a hyperfine structure analysis are presented. This 1u state is useful as a novel ungerade Franck-Condon window at large internuclear distance for studies of highly-excited long-range interactions.Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
57
Issue
6
Pub Type
Journals
Keywords
alkali dimer, laser cooling, photassociative spectroscopy, potassium molecule, ultracold atoms
Citation
Issues
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Created May 31, 1998, Updated October 12, 2021