The nonradiative changeover fees Keep to the system WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the Strength gap. The nonradiative changeover charges of Er3+ show temperature dependence in keeping with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative leisure rates is https://stephenagiii.amoblog.com/er-yb-yab-crystal-options-55128935