RUMORED BUZZ ON ER:YB:YAB CRYSTAL

The nonradiative changeover charges Stick to the system WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Vitality hole. The nonradiative changeover costs of Er3+ show temperature dependence in keeping with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative rest premiums is complex via the ex