A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative transition rates Keep to the method WNR = W (0) exp(-alphap), where p is the number of phonons matching the Electricity gap. The nonradiative changeover costs of Er3+ exhibit temperature dependence consistent with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace charges is difficult by the exi