Hyperfine effects on associative ionization of ultracold sodium

Mark E. Wagshul, K. Helmerson, P. D. Lett, S. L. Rolston, W. D. Phillips, R. Heather, P. S. Julienne

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

We observe a new resonance structure in the associative ionization spectrum of laser-cooled sodium due to the collision of two atoms in different ground hyperfine states. This associative ionization is due to doubly resonant excitation at moderate internuclear separation through intermediate molecular states. Substructure within this resonance is evidence for the role of molecular bound states in this process. We present calculations modeling the effect of ground-state hyperfine structure, the importance of which was unanticipated in earlier theoretical studies.

Original languageEnglish (US)
Pages (from-to)2074-2077
Number of pages4
JournalPhysical Review Letters
Volume70
Issue number14
DOIs
StatePublished - 1993
Externally publishedYes

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sodium
ionization
substructures
hyperfine structure
collisions
ground state
excitation
lasers
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wagshul, M. E., Helmerson, K., Lett, P. D., Rolston, S. L., Phillips, W. D., Heather, R., & Julienne, P. S. (1993). Hyperfine effects on associative ionization of ultracold sodium. Physical Review Letters, 70(14), 2074-2077. https://doi.org/10.1103/PhysRevLett.70.2074

Hyperfine effects on associative ionization of ultracold sodium. / Wagshul, Mark E.; Helmerson, K.; Lett, P. D.; Rolston, S. L.; Phillips, W. D.; Heather, R.; Julienne, P. S.

In: Physical Review Letters, Vol. 70, No. 14, 1993, p. 2074-2077.

Research output: Contribution to journalArticle

Wagshul, ME, Helmerson, K, Lett, PD, Rolston, SL, Phillips, WD, Heather, R & Julienne, PS 1993, 'Hyperfine effects on associative ionization of ultracold sodium', Physical Review Letters, vol. 70, no. 14, pp. 2074-2077. https://doi.org/10.1103/PhysRevLett.70.2074
Wagshul ME, Helmerson K, Lett PD, Rolston SL, Phillips WD, Heather R et al. Hyperfine effects on associative ionization of ultracold sodium. Physical Review Letters. 1993;70(14):2074-2077. https://doi.org/10.1103/PhysRevLett.70.2074
Wagshul, Mark E. ; Helmerson, K. ; Lett, P. D. ; Rolston, S. L. ; Phillips, W. D. ; Heather, R. ; Julienne, P. S. / Hyperfine effects on associative ionization of ultracold sodium. In: Physical Review Letters. 1993 ; Vol. 70, No. 14. pp. 2074-2077.
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