The nonradiative transition fees Keep to the formulation WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure rates https://er-yb-yab-crystal49482.bloginder.com/35467327/er-yb-yab-crystal-can-be-fun-for-anyone