The nonradiative changeover premiums Adhere to the formula WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Vitality hole. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative relaxation prices is complex https://er-yb-yab-crystal30517.getblogs.net/65847529/top-latest-five-er-yb-yab-crystal-urban-news