The nonradiative changeover premiums Keep to the system WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Vitality gap. The nonradiative changeover charges of Er3+ exhibit temperature dependence in step with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative leisure rates is https://lorenzovxwur.blogspothub.com/32274738/the-basic-principles-of-er-yb-yab-crystal