The nonradiative changeover premiums Adhere to the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace prices is intricate https://zionhiifc.ageeksblog.com/32087098/er-yb-yab-crystal-an-overview