A SIMPLE KEY FOR ER:YB:YAB CRYSTAL UNVEILED

The nonradiative changeover rates Keep to the components WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the energy hole. The nonradiative transition costs of Er3+ show temperature dependence according to the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative peace charges is sophisticated through th