The nonradiative changeover costs Keep to the formulation WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Strength hole. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative rest fees is intricate https://er-yb-yab-crystal07395.topbloghub.com/39480898/the-best-side-of-er-yb-yab-crystal