Quasi-Molecular Optical Transitions near Resonance Lines of Kr and Xe Atoms in Helium

A. Z. Devdariani, A. L. Zagrebin, M. G. Lednev

Research output: Contribution to journalArticlepeer-review


Abstract: The emission and absorption spectra of Kr and Xe atoms near the 1,3P11S0 resonance lines in an atmosphere of helium atoms under equilibrium conditions have been theoretically investigated. Potential curves for excited states of Kr(4p55s) + He and Xe(5p56s) + He quasi-molecules are obtained with joint application of the effective Hamiltonian and pseudopotential methods. Experimental data are used for the ground state. Based on these potential curves, the spectral profiles of quasi-molecular emission and absorption for short-wavelength wings of the resonance lines are calculated within the quasi-static approximation. The results obtained for absorption are compared with the known experimental data.

Original languageEnglish
Pages (from-to)167-171
Number of pages5
Issue number2
StatePublished - 1 Feb 2020

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


  • absorption and emission of light
  • atomic collisions
  • quasi-molecular terms
  • resonance transitions
  • spectral line wings

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