The nonradiative transition costs follow the formulation WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the energy hole. The nonradiative transition prices of Er3+ show temperature dependence according to the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative relaxation prices is difficult https://karlc679sqn7.blogsvirals.com/profile