The nonradiative transition premiums follow the components WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the Electrical power gap. The nonradiative changeover premiums of Er3+ exhibit temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative rest fees is https://er-yb-yab-crystal62840.bloggip.com/33360674/the-2-minute-rule-for-er-yb-yab-crystal