NOT KNOWN DETAILS ABOUT ER:YB:YAB CRYSTAL

The nonradiative transition rates follow the method WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the Strength gap. The nonradiative changeover charges of Er3+ exhibit temperature dependence according to the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative rest rates is sophisticated wi