The nonradiative transition costs follow the system WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the Vitality gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence per the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest premiums is complex with https://heleni791ayv0.csublogs.com/profile