A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative changeover rates Keep to the system WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the Vitality gap. The nonradiative transition costs of Er3+ show temperature dependence consistent with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative leisure premiums is sophisticated by t