The nonradiative changeover charges Keep to the method WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the Power hole. The nonradiative changeover costs of Er3+ exhibit temperature dependence according to the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative relaxation charges is https://er-yb-yab-crystal63073.targetblogs.com/33669138/the-best-side-of-er-yb-yab-crystal