The nonradiative changeover prices Keep to the components WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Strength hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence according to the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative leisure charges is challenging https://cashbdcfc.blogdal.com/33601310/what-does-er-yb-yab-crystal-mean