The nonradiative changeover rates follow the method WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the energy hole. The nonradiative transition costs of Er3+ exhibit temperature dependence in step with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is https://erybyabcrystal72715.tkzblog.com/34584236/little-known-facts-about-er-yb-yab-crystal