Photoassociation spectroscopy of cold He(2(3)S) atoms

Authors
Herschbach, N Tol, PJJ Vassen, W Hogervorst, W Woestenenk, G Thomsen, JW van der Straten, P Niehaus, A
Citation
N. Herschbach et al., Photoassociation spectroscopy of cold He(2(3)S) atoms, PHYS REV L, 84(9), 2000, pp. 1874-1877
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
9
Year of publication
2000
Pages
1874 - 1877
Database
ISI
SICI code
0031-9007(20000228)84:9<1874:PSOCHA>2.0.ZU;2-Z
Abstract
We observe vibrational states by photoassociation spectroscopy of cold He(2 (3)S) atoms. Photoassociation resonances are detected as peaks in the Penni ng ionization I rate over a frequency range of 20 GHz below the atomic 2(3) S(1)-2(3)P(2) transition frequency. We have observed three vibrational seri es, or which two can be identified. A possible mechanism to explain the obs erved increase of the Penning ionization rate is discussed.