THE 2-MINUTE RULE FOR ER:YB:YAB CRYSTAL

The nonradiative changeover rates Adhere to the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative changeover costs of Er3+ show temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace rates is intricate because of