The nonradiative transition premiums Keep to the method WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the Strength hole. The nonradiative changeover premiums of Er3+ exhibit temperature dependence per the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative relaxation costs is difficult https://erybyabcrystal73073.thenerdsblog.com/40604140/top-latest-five-er-yb-yab-crystal-urban-news