Photoassociation spectroscopy of cold He(2 3S) atoms

Photoassociation spectroscopy of cold He(2 3S) atoms

We observe vibrational states by photoassociation spectroscopy of cold He(2 3S) atoms. Photoassociation resonances are detected as peaks in the Penning ionization rate over a frequency range of 20 GHz below the atomic 2 3S1-2 3P2 transition frequency. We have observed three vibrational series, of wh...

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Veröffentlicht in:Physical review letters 2000-02, Vol.84 (9), p.1874-1877
Hauptverfasser: Herschbach, N, Tol, PJ, Vassen, W, Hogervorst, W, Woestenenk, G, Thomsen, JW, van Der Straten P, Niehaus, A
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Sprache:eng
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Zusammenfassung:We observe vibrational states by photoassociation spectroscopy of cold He(2 3S) atoms. Photoassociation resonances are detected as peaks in the Penning ionization rate over a frequency range of 20 GHz below the atomic 2 3S1-2 3P2 transition frequency. We have observed three vibrational series, of which two can be identified. A possible mechanism to explain the observed increase of the Penning ionization rate is discussed.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.84.1874