The nonradiative changeover rates Keep to the formulation WNR = W (0) exp(-alphap), where p is the amount of phonons matching the Electrical power gap. The nonradiative changeover rates of Er3+ show temperature dependence consistent with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest costs is https://erybyabcrystal72961.mpeblog.com/58350141/er-yb-yab-crystal-for-dummies