THE BEST SIDE OF ER:YB:YAB CRYSTAL

The nonradiative transition fees follow the formula WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Strength gap. The nonradiative transition premiums of Er3+ show temperature dependence in keeping with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative rest charges is challenging from the