ER:YB:YAB CRYSTAL - AN OVERVIEW

The nonradiative transition premiums Keep to the components WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the Strength gap. The nonradiative transition charges of Er3+ show temperature dependence in line with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative relaxation rates is complex with