Collision-Induced Dipole Transitions Associated with High-Lying States. I. Absorption Studies of Barium in Rare Gases

Kiyoshi Ueda, Takashi Fujimoto, Kuniya Fukuda

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Absorption method has been applied to observe the collision-induced dipole transitions associated with the optically forbidden transitions 6s 21S0–6p21D2, -6s9d 1D2, -6s10d 1D2, and -5d8p 1D2 of barium in argon, krypton or xenon atmosphere. The effective oscillator strength per unit rare-gas density is obtained to be, e.g., for 6s2–6s9d, 3.6×10−24, 2.0×10−23, and 5.8×10−23cm3for argon, krypton, and xenon, respectively. A correlation is found between the effective oscillator strength and the scattering length of the rare-gas atoms for electrons. This is explained from a model in which an adjacent P state mixes into the D state due to the interaction potential between the loosely-bound valence electron and the rare-gas atom.

Original languageEnglish
Pages (from-to)1147-1153
Number of pages7
Journaljournal of the physical society of japan
Volume49
Issue number3
DOIs
Publication statusPublished - 1980

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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