The nonradiative changeover prices Stick to the method WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Strength gap. The nonradiative changeover premiums of Er3+ show temperature dependence per the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative peace premiums is challenging https://er-yb-yab-crystal30627.is-blog.com/39719670/considerations-to-know-about-er-yb-yab-crystal