The nonradiative changeover rates Keep to the formulation WNR = W (0) exp(-alphap), where by p is the number of phonons matching the Strength hole. The nonradiative transition costs of Er3+ show temperature dependence in line with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure rates https://frankh924ihe4.azuria-wiki.com/user