arXiv physics/98110351998-11-18physics.atm-cluscond-matphysics.chem-ph

Symmetry Adaptation and Two-Photon Spectroscopy of Ions in Molecular or Solid-State Finite Symmetry

M. Kibler, M. Daoud

备注：: 14 pages, Tex file. Invited paper at the "V Workshop on Symmetry Methods in Physics", Obninsk, Kaluga region, USSR, 8-12 July 1991
发表信息：: Published in "Symmetry Methods in Physics", Eds. Yu.F. Smirnov and R.M. Asherova (Institute of Physics and Power Engineering, Obninsk, 1992), (pages 37-49)

英文摘要：

Finite symmetry adaptation techniques are applied to the determination of the intensity strength of two-photon transitions for ions with one partly-filled shell nl in crystalline environments of symmetry G. We treat the case of intra- configurational transitions as well as the case of inter-configurational transitions. In both cases, the Wigner-Racah algebra of the chain O(3) > G allows to extract the polarization dependence from the intensity. The reported results are valid for any strength of the crystalline field.

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