EXAMINE THIS REPORT ON ER:YB:YAB CRYSTAL

The nonradiative transition charges Stick to the components WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Power gap. The nonradiative changeover charges of Er3+ show temperature dependence consistent with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative relaxation rates is complicated with