The nonradiative changeover charges follow the components WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Power hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative rest premiums is complicated https://er-yb-yab-crystal30517.digiblogbox.com/57998624/a-secret-weapon-for-er-yb-yab-crystal