LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative transition premiums Keep to the formulation WNR = W (0) exp(-alphap), in which p is the number of phonons matching the Electricity hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative relaxation charges is sophisticated from th