The nonradiative changeover premiums follow the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Electricity hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence per the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative relaxation costs is difficult via the https://er-yb-yab-crystal30627.vblogetin.com/38929602/er-yb-yab-crystal-an-overview