A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition costs Adhere to the system WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Vitality gap. The nonradiative transition prices of Er3+ exhibit temperature dependence per the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative relaxation rates is complex because of the