Journal of the Optical Society of America B · 1989 · 69 citations · 3 references
Natural SciencesMaterials SciencePhysicsOptical MaterialsOpticsPhotonicsElectronic Excited StatesLaser OpticsLaser PhysicsNonlinear Optical MaterialsNonlinear OpticsRare-earth-doped MaterialsExcited Electronic StatesExcited StatesExcited-state AbsorptionExcited-state DynamicsNonlinear AbsorptionOptical AbsorptionRare-earth-doped CrystalsThreshold Behavior
Anomalous and strong optical absorption occurs in Pr-doped LaCl3 crystals for laser pump light connecting excited electronic states of the Pr ion and intensity in excess of a well-defined threshold value. We have measured the absorption as a function of pumping intensity and compare the results with mathematical models of a laser-induced excited-state population.
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