Polarization-dependent photoionization cross sections and radiative lifetimes of atomic states in BaI

C.-H. Li and D. Budker
Phys. Rev. A 74, 012512 – Published 31 July 2006

Abstract

The photoionization cross sections of two even-parity excited states 5d6dD13 and 6s7dD23 of atomic Ba at the ionization-laser wavelength of 556.6nm were measured. We found that the total cross section depends on the relative polarization of the atoms and the ionization-laser light. With density-matrix algebra, we show that, in general, there are at most three parameters in the photoionization cross section. Some of these parameters are determined in this work. We also present the measurement of the radiative lifetime of five even-parity excited states of barium.

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  • Received 3 March 2006

DOI:https://doi.org/10.1103/PhysRevA.74.012512

©2006 American Physical Society

Authors & Affiliations

C.-H. Li*

  • Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA

D. Budker

  • Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *Electronic address: chli@mit.edu
  • Electronic address: budker@berkeley.edu

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Vol. 74, Iss. 1 — July 2006

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