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

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

2006-02-28

arxiv.org/abs/physics/0602189v2

Phys. Rev. A, 74, 012512 (2006)

Physics

Atomic Physics

11 pages, 7 figures

Scientific paper

10.1103/PhysRevA.74.012512

The photoionization cross-sections of two even-parity excited states, $5d6d ^3D_1$ and $6s7d ^3D_{2}$, of atomic Ba at the ionization-laser wavelength of 556.6 nm 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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