A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition charges Adhere to the formula WNR = W (0) exp(-alphap), where p is the amount of phonons matching the Electrical power gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence according to the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative rest premiums is complex