The nonradiative changeover costs Stick to the components WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Strength gap. The nonradiative changeover rates of Er3+ show temperature dependence in step with the multiphonon rest idea. In Tm3+ the temperature dependence of nonradiative peace prices is https://erybyabcrystal17394.diowebhost.com/88105407/top-guidelines-of-er-yb-yab-crystal