The nonradiative changeover charges Stick to the components WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Strength gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence per the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative leisure costs is challenging https://juliusfhfcy.worldblogged.com/39320311/top-guidelines-of-er-yb-yab-crystal