5 SIMPLE TECHNIQUES FOR ER:YB:YAB CRYSTAL

The nonradiative changeover fees Adhere to the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Vitality hole. The nonradiative changeover costs of Er3+ show temperature dependence consistent with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative relaxation charges is complex