FACTS ABOUT ER:YB:YAB CRYSTAL REVEALED

The nonradiative transition costs follow the formula WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the energy hole. The nonradiative changeover rates of Er3+ show temperature dependence in line with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative peace rates is complex from the exi