The nonradiative transition fees Stick to the formula WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the Strength gap. The nonradiative changeover costs of Er3+ show temperature dependence in step with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative rest premiums https://er-yb-yab-crystal61481.csublogs.com/40158405/helping-the-others-realize-the-advantages-of-er-yb-yab-crystal