The nonradiative changeover premiums follow the formulation WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Power hole. The nonradiative transition fees of Er3+ show temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure premiums is https://heinzn036ool6.wikihearsay.com/user