The nonradiative transition premiums follow the formula WNR = W (0) exp(-alphap), the place p is the quantity of phonons matching the Strength gap. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest charges is https://chrisu470efg5.wiki-jp.com/user