The nonradiative changeover fees Stick to the system WNR = W (0) exp(-alphap), where p is the number of phonons matching the Vitality gap. The nonradiative transition premiums of Er3+ exhibit temperature dependence according to the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative leisure costs is difficult https://connerjgzsm.widblog.com/88052690/the-best-side-of-er-yb-yab-crystal