ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative transition rates Stick to the components WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy hole. The nonradiative changeover prices of Er3+ show temperature dependence consistent with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative peace charges is complicated