THE BEST SIDE OF ER:YB:YAB CRYSTAL

The nonradiative changeover costs Keep to the method WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Electrical power gap. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative rest costs is intricate from the existence of