A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition premiums Keep to the system WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the Vitality hole. The nonradiative transition prices of Er3+ show temperature dependence per the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative leisure rates is complicated from the e