The nonradiative changeover charges Keep to the formula WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the energy hole. The nonradiative changeover prices of Er3+ show temperature dependence in keeping with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest costs https://er-yb-yab-crystal39516.angelinsblog.com/32461679/er-yb-yab-crystal-an-overview