The nonradiative changeover premiums Keep to the system WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the Vitality hole. The nonradiative changeover premiums of Er3+ show temperature dependence in step with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative leisure prices https://er-yb-yab-crystal52849.onzeblog.com/33273810/the-greatest-guide-to-er-yb-yab-crystal