The nonradiative changeover rates follow the components WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the Vitality gap. The nonradiative transition premiums of Er3+ exhibit temperature dependence according to the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative rest rates is sophisticated https://erybyabcrystal08418.therainblog.com/33680689/er-yb-yab-crystal-options