The nonradiative changeover prices Keep to the system WNR = W (0) exp(-alphap), where p is the number of phonons matching the energy hole. The nonradiative changeover prices of Er3+ show temperature dependence in line with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative rest charges is https://erybyabcrystal61627.izrablog.com/33651438/er-yb-yab-crystal-options