ER:YB:YAB CRYSTAL - AN OVERVIEW

The nonradiative transition rates Keep to the components WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Electrical power hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence consistent with the multiphonon rest idea. In Tm3+ the temperature dependence of nonradiative relaxation costs is complex