FACTS ABOUT ER:YB:YAB CRYSTAL REVEALED

The nonradiative transition prices Stick to the formulation WNR = W (0) exp(-alphap), in which p is the number of phonons matching the energy gap. The nonradiative changeover costs of Er3+ exhibit temperature dependence according to the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace rates is difficult from the