WHAT DOES ER:YB:YAB CRYSTAL MEAN?

The nonradiative changeover premiums Stick to the components WNR = W (0) exp(-alphap), where p is the number of phonons matching the Power hole. The nonradiative transition rates of Er3+ exhibit temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative rest costs is complex because of