The nonradiative changeover fees Keep to the components WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Vitality hole. The nonradiative changeover charges of Er3+ show temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace prices is https://lorenzovxwur.blogspothub.com/32274738/the-basic-principles-of-er-yb-yab-crystal