WHAT DOES ER:YB:YAB CRYSTAL MEAN?

The nonradiative transition fees Stick to the method WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Strength gap. The nonradiative transition fees of Er3+ show temperature dependence according to the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace charges is complex via the existence