The nonradiative transition rates Stick to the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Vitality gap. The nonradiative changeover premiums of Er3+ exhibit temperature dependence per the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure premiums is difficult https://erybyabcrystal18405.estate-blog.com/32378514/details-fiction-and-er-yb-yab-crystal