THE BASIC PRINCIPLES OF ER:YB:YAB CRYSTAL

The nonradiative changeover costs Keep to the formula WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Vitality hole. The nonradiative changeover fees of Er3+ show temperature dependence in line with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative peace rates is complex by the existence of