DETAILS, FICTION AND ER:YB:YAB CRYSTAL

The nonradiative transition premiums Adhere to the formulation WNR = W (0) exp(-alphap), the place p is the quantity of phonons matching the Strength gap. The nonradiative changeover charges of Er3+ show temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative relaxation costs is