The nonradiative changeover rates Keep to the formulation WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the energy hole. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative rest premiums is https://collinhhgdz.mybloglicious.com/53455745/er-yb-yab-crystal-an-overview