The nonradiative transition charges Adhere to the formulation WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the energy gap. The nonradiative transition costs of Er3+ show temperature dependence in line with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative relaxation charges https://er-yb-yab-crystal27150.vblogetin.com/40554545/helping-the-others-realize-the-advantages-of-er-yb-yab-crystal