The nonradiative transition prices follow the formulation WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Strength gap. The nonradiative transition costs of Er3+ show temperature dependence according to the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative relaxation prices is complicated https://anatoled713mlj6.wikicorrespondent.com/user