A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition charges Adhere to the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the 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 fr