FACTS ABOUT ER:YB:YAB CRYSTAL REVEALED

The nonradiative transition premiums Stick to the components WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Electricity gap. The nonradiative transition fees of Er3+ exhibit temperature dependence consistent with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative rest charges is complicated