Abstract
We explain the de-excitation processes of the optically excited states of the F centers in alkali halides through the observation of the resonant secondary emission (RSE). Here, the RSE occurs successively as resonant Raman scattering, hot luminescence, and ordinary luminescence. By studying carefully the RSE and the transient effects of ultra-fast emission in de-excitation, we explain the dynamical processes of lattice relaxation within a strong interaction scheme of lattice and electron excited optically. We also show specific evidences of de-excitation caused by two-photon absorption of F centers in KC1 with a Nd:YAG laser excitation. Finally, magneto-optical processes in the optical pumping process of the F center are discussed.KeywordsState PhysicsExcited StateStrong InteractionDynamical ProcessRaman ScatteringThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Published Version
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