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Laser-induced-fluorescence lifetime measurements and relativistic Hartree-Fock oscillator strength calculations in singly ionized platinum

By Pascal Quinet, P. Palmeri, V. Fivet, Emile Biémont, H. Nilsson, L. Engström and H. Lundberg


Radiative lifetimes of eight odd-parity states of Pt II, in the energy range from 51 408 to 64 388 cm−1, have been measured by means of the time-resolved laser-induced-fluorescence technique. Free, singly ionized platinum ions were obtained in a laser-produced plasma and a tunable laser with 1.5 ns duration pulse was used to selectively excite the Pt+ ions. The comparison of the experimental results with relativistic Hartree-Fock calculations emphasizes the importance of valence-valence correlation and of core-polarization effects in this complex ion. A new and extensive set of calculated oscillator strengths and transition probabilities is reported in the present paper.Peer reviewe

Topics: Physical, chemical, mathematical & earth Sciences :: Physics, Physique, chimie, mathématiques & sciences de la terre :: Physique
Year: 2008
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