NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover costs Keep to the system WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Electrical power hole. The nonradiative transition rates of Er3+ show temperature dependence in keeping with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative rest fees is complicated by the ex