Validity of the three-charge-state model in photorefractive BaTiO3:Rh at 1.06 μm in the cw regime

Abstract

:Rh are the only ones involved in the photorefractive effect at 1.06 μm. In this paper, we apply this model to the prediction of the steady-state photorefractive space-charge field. We present experimental measurements of induced absorption and beam-coupling gain in BaTiO3:Rh at 1.06 μm, which are consistent with the model. From these data, we determine a set of parameters (with error bars) such as the excitation cross sections and density of rhodium.