Description:
AbstractThis work is a continuous effort of the F+‐center calculation for lithium niobate. The simplified semicontinuum model developed previously by this author is again used. The polarization effect is taken into account. Although the major procedures follow those developed before, there is one departure in the 2p‐energy‐eigenvalue calculation. It is assumed that the Franck‐Condon principle applies, and that the ions do not move during the absorption process. The transition energies computed here are rather compatible with those values calculated by using the point‐ion‐lattice model. All results are found to be in good agreement with the experimentally observed value.