Energy Levels of Paramagnetic lons: Algebra. VI. Transition Intensity Calculations
M. Kibler, Jean-Claude Gâcon · University of Zagreb University Computing Centre (SRCE) · 1990
Symmetry adaptation techniques developed in the first papers of this series are applied to intensity calculations for one-and two-photon transitions between crystalline or molecular states arising from a configuration nlN in a symmetry G.To illustrate the techniques, we begin with one-photon magnetic-dipole transitions.Then, we give a detailed treatment of the second-order mechanisms for two-photon electric-dipole transitions; the case of configuration 4f6 in symmetry C4v serves as an illustration.We also give indications of the passage from second-order to higher-order mechanisms.Finally, some general symmetry considerations for one-photon electric-dipole transitions are briefly investigated.