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Journal of Experimental and Theoretical Physics

Three-photon ionization of metastable helium atoms. [Cross sections, resonance state perturbations]

Joseph S. Bakos, Nikolai B. Delone, Annamária Kiss, Nikolai L. Manakov, M. L. Nagaeva

Published Aug 1, 1976• 0 citations
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Multipole interference effects are predicted in the generalized cross sections, and in the ratio $\frac{{\stackrel{^}{\ensuremath{\sigma}}}_{C}}{{\stackrel{^}{\ensuremath{\sigma}}}_{L}}$ of the cross sections for circularly and linearly polarized laser light for the case of the two-photon ionization of the n=2n=2n=2 singlet metastable helium atoms in the wavelength range 5036-5050 \AA{}.