Abstract
In this work, a study of the temporal dynamical behavior of IR-visible up-conversion in the LiNbO3: Er3+/Yb3+ system under modulated IR excitation at 980 nm is presented. It is shown that modulation characteristics, including the relative green-to-red emission ratio (GRR), can be quantitatively explained by using the rate equations formalism. The relevant spectroscopic magnitudes are identified and this provides a general framework to explore the properties of other Er3+/Yb3+ doped up-converting phosphors.
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