THE BEST SIDE OF ER:YB:YAB CRYSTAL

The nonradiative changeover costs follow the system WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Electrical power hole. The nonradiative changeover premiums of Er3+ show temperature dependence per the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative leisure fees is complicated because of th