Radiative quenching and excitation of metastable states upon differential scattering of atoms: I. Uniform quasi-classical theory

A. Z. Devdariani, E. A. Chesnokov

Research outputpeer-review

2 Citations (Scopus)

Abstract

A theory of radiative-collisional transitions between the ground and metastable 1S states of a colliding atom is proposed. The theory uses the uniform quasi-classical approximation generalized to the case of spherically asymmetric interactions. The theory takes into account the angular momentum of an emitted (absorbed) photon and allows one to calculate the total and differential scattering cross sections in a wide range of radiation frequencies including both wings and the center of the line of a forbidden atomic transition. The range of admissible collision energies and intensities of an external radiation field is restricted by the use of the adiabatic approximation, as well as the approximation of a weak coupling between the ground and excited states of a quasi-molecule, the potentials of which are assumed to be monotonically repulsive.

Translated title of the contributionРАДИАЦИОННОЕ ТУШЕНИЕ И ВОЗБУЖДЕНИЕ МЕТАСТАБИЛЬНЫХ СОСТОЯНИЙ ПРИ ДИФФЕРЕНЦИАЛЬНОМ РАССЕЯНИИ АТОМОВ.: I. РАВНОМЕРНАЯ КВАЗИКЛАССИЧЕСКАЯ ТЕОРИЯ
Original languageEnglish
Pages (from-to)858-865
Number of pages8
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume99
Issue number6
DOIs
Publication statusPublished - 1 Dec 2005

Scopus subject areas

  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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