WHAT DOES ER:YB:YAB CRYSTAL MEAN?

The nonradiative transition costs follow the components WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the Strength gap. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon rest idea. In Tm3+ the temperature dependence of nonradiative rest fees is intricate with the existence of self-