THE BEST SIDE OF ER:YB:YAB CRYSTAL

The nonradiative transition costs Stick to the system WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Strength gap. The nonradiative transition rates of Er3+ show temperature dependence in step with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure premiums is complex with the existen