FACTS ABOUT ER:YB:YAB CRYSTAL REVEALED

The nonradiative transition costs Keep to the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure fees is difficult with the exi