NOT KNOWN DETAILS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover rates follow the formulation WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Electrical power hole. The nonradiative changeover fees of Er3+ show temperature dependence according to the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative relaxation rates is challenging