The nonradiative transition premiums Keep to the formulation WNR = W (0) exp(-alphap), in which p is the number of phonons matching the Vitality gap. The nonradiative changeover prices of Er3+ show temperature dependence per the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices is intricate https://er-yb-yab-crystal74051.blogdomago.com/32195046/a-secret-weapon-for-er-yb-yab-crystal