The nonradiative changeover fees Keep to the components WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Vitality hole. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative peace prices is complex https://damiencdbyu.blogsvirals.com/32353086/little-known-facts-about-er-yb-yab-crystal