The nonradiative changeover charges follow the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Power gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative rest costs is https://er-yb-yab-crystal06273.theobloggers.com/39507311/5-essential-elements-for-er-yb-yab-crystal