The nonradiative transition rates follow the method WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Vitality gap. The nonradiative changeover prices of Er3+ exhibit temperature dependence in keeping with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative peace premiums is https://er-yb-yab-crystal50592.ageeksblog.com/33642586/not-known-factual-statements-about-er-yb-yab-crystal