The nonradiative changeover charges Keep to the formula WNR = W (0) exp(-alphap), exactly where p is the volume of phonons matching the Vitality hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure fees is https://er-yb-yab-crystal40628.thekatyblog.com/31934981/the-2-minute-rule-for-er-yb-yab-crystal