The nonradiative changeover premiums Adhere to the system WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Strength gap. The nonradiative transition premiums of Er3+ exhibit temperature dependence per the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative relaxation prices is challenging https://er-yb-yab-crystal74073.blog2news.com/33884821/top-guidelines-of-er-yb-yab-crystal