LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative transition costs Stick to the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure fees is challenging because of th