The nonradiative transition prices Adhere to the method WNR = W (0) exp(-alphap), the place p is the quantity of phonons matching the Vitality hole. The nonradiative transition fees of Er3+ show temperature dependence in step with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative relaxation charges https://er-yb-yab-crystal75296.blogsidea.com/41231805/er-yb-yab-crystal-options