ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative transition fees Keep to the formulation WNR = W (0) exp(-alphap), exactly where p is the volume of phonons matching the Strength hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is difficult because of the e