A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative changeover premiums Keep to the formula WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Electrical power hole. The nonradiative transition costs of Er3+ show temperature dependence in line with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative peace costs is complicated