5 SIMPLE TECHNIQUES FOR ER:YB:YAB CRYSTAL

The nonradiative changeover prices follow the method WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Vitality hole. The nonradiative changeover charges of Er3+ show temperature dependence according to the multiphonon rest idea. In Tm3+ the temperature dependence of nonradiative relaxation charges is complex via the existence