ER:YB:YAB CRYSTAL - AN OVERVIEW

The nonradiative transition rates Keep to the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the energy gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative relaxation charges is sophisticated through the