The nonradiative changeover charges follow the formulation WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Electrical power hole. The nonradiative changeover fees of Er3+ show temperature dependence in step with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest fees https://er-yb-yab-crystal63951.blogdal.com/33534715/er-yb-yab-crystal-an-overview