A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative changeover fees follow the formula WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Electricity gap. The nonradiative changeover prices of Er3+ show temperature dependence in step with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative peace charges is complicated with the exi