The nonradiative changeover costs Keep to the formula WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Vitality hole. The nonradiative transition charges of Er3+ show temperature dependence consistent with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative leisure prices is https://cruzbikkk.dailyhitblog.com/40207387/not-known-factual-statements-about-er-yb-yab-crystal