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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 11 — Nov. 1, 2004
  • pp: 2058–2067

Lifetime and hyperfine splitting measurements on the 7s and 6p levels in rubidium

E. Gomez, S. Aubin, L. A. Orozco, and G. D. Sprouse  »View Author Affiliations


JOSA B, Vol. 21, Issue 11, pp. 2058-2067 (2004)
http://dx.doi.org/10.1364/JOSAB.21.002058


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Abstract

We present lifetime measurements of the 7S1/2 level and the 6p manifold of rubidium. We use a time-correlated single-photon counting technique on a sample of  85Rb atoms confined and cooled in a magneto-optic trap. The upper state of the 5P1/2 repumping transition serves as the resonant intermediate level for two-photon excitation of the 7s level. A probe laser provides the second step of the excitation, and we detect the decay of atomic fluorescence to the 5P3/2 level at 741 nm. The decay process feeds the 6p manifold that decays to the 5s ground state emitting UV photons. We measure lifetimes of 88.07±0.40 and 120.7±1.2 ns for the 7S1/2 level and 6p manifold, respectively; the hyperfine splitting of the 7S1/2 level is 282.6±1.6 MHz. The agreement with theoretical calculations confirms the understanding of the wave functions involved and provides confidence on the possibility of extracting weak interaction constants from a parity nonconservation measurement.

© 2004 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(020.4900) Atomic and molecular physics : Oscillator strengths
(020.7010) Atomic and molecular physics : Laser trapping
(300.6210) Spectroscopy : Spectroscopy, atomic

Citation
E. Gomez, S. Aubin, L. A. Orozco, and G. D. Sprouse, "Lifetime and hyperfine splitting measurements on the 7s and 6p levels in rubidium," J. Opt. Soc. Am. B 21, 2058-2067 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-11-2058

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