A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative transition charges Adhere to the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative peace charges is sophisticated via the existence