A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition costs follow the formula WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Strength hole. The nonradiative transition fees of Er3+ exhibit temperature dependence consistent with the multiphonon rest idea. In Tm3+ the temperature dependence of nonradiative relaxation costs is complex via the exist