The nonradiative transition costs follow the method WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Strength gap. The nonradiative changeover premiums of Er3+ show temperature dependence in line with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices is https://erybyabcrystal85173.qowap.com/92365867/getting-my-er-yb-yab-crystal-to-work