The nonradiative transition rates follow the system WNR = W (0) exp(-alphap), where p is the number of phonons matching the Electrical power hole. The nonradiative transition prices of Er3+ exhibit temperature dependence consistent with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative relaxation prices is complex https://er-yb-yab-crystal27150.vblogetin.com/40554545/helping-the-others-realize-the-advantages-of-er-yb-yab-crystal