Hyperfine-structure intervals and isotope shifts in the 3p44s4PJ3p44p4DJ fine-structure multiplet of atomic chlorine by diode laser spectroscopy

D. A. Tate and J. P. Walton
Phys. Rev. A 59, 1170 – Published 1 February 1999
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Abstract

We have measured hyperfine-structure splittings and isotope shifts in the 4s4PJ4p4DJ multiplet in atomic chlorine using Doppler-free saturated absorption spectroscopy with an external cavity diode laser. Spectra of seven of the eight components of this multiplet, which have wavelengths between 798 and 859 nm, were obtained. Values for the magnetic dipole and electric quadrupole hyperfine-structure constants of the 4P1/25/2 and 4D1/27/2 states in both 35Cl and 37Cl were found, and the isotope shifts of the seven transitions studied were measured. The data were also analyzed in an attempt to extract values for magnetic octupole coupling constants for some of the levels investigated, but these were found to be zero at the level of the experimental uncertainty of our measurements.

  • Received 10 August 1998

DOI:https://doi.org/10.1103/PhysRevA.59.1170

©1999 American Physical Society

Authors & Affiliations

D. A. Tate and J. P. Walton

  • Department of Physics and Astronomy, Colby College, Waterville, Maine 04901

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Vol. 59, Iss. 2 — February 1999

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