The nonradiative changeover charges follow the components WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the Electrical power gap. The nonradiative changeover costs of Er3+ exhibit temperature dependence in keeping with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace prices is https://erybyabcrystal96283.jaiblogs.com/60126931/er-yb-yab-crystal-an-overview