The nonradiative changeover fees follow the system WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Vitality gap. The nonradiative changeover prices of Er3+ show temperature dependence per the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure charges is complicated through https://kylerefday.get-blogging.com/33646525/er-yb-yab-crystal-an-overview