The nonradiative changeover rates Keep to the formula WNR = W (0) exp(-alphap), where by p is the number of phonons matching the energy hole. The nonradiative changeover costs of Er3+ show temperature dependence in step with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative leisure charges https://knoxejkli.bloggazza.com/33770644/the-5-second-trick-for-er-yb-yab-crystal