The nonradiative changeover fees Stick to the system WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Electrical power gap. The nonradiative changeover rates of Er3+ show temperature dependence in step with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest https://beaucdcaw.blog2freedom.com/33116312/little-known-facts-about-er-yb-yab-crystal