The nonradiative transition costs Keep to the method WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the energy hole. The nonradiative changeover premiums of Er3+ exhibit temperature dependence according to the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative leisure prices is https://titusnnmjg.theisblog.com/33329276/not-known-factual-statements-about-er-yb-yab-crystal