The nonradiative changeover costs Keep to the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Power gap. The nonradiative changeover rates of Er3+ show temperature dependence consistent with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative peace rates is https://er-yb-yab-crystal39541.daneblogger.com/32278689/er-yb-yab-crystal-an-overview