The nonradiative changeover fees Stick to the components WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Power gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest premiums https://er-yb-yab-crystal15763.isblog.net/the-definitive-guide-to-er-yb-yab-crystal-50409031