NOT KNOWN DETAILS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover rates Keep to the formula WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the energy gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative rest premiums is complex with the existence of sel