The nonradiative transition premiums follow the components WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the energy hole. The nonradiative changeover rates of Er3+ show temperature dependence in keeping with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative rest premiums is https://rowanfjigd.buyoutblog.com/33156546/rumored-buzz-on-er-yb-yab-crystal