LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative transition fees follow the components WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Power gap. The nonradiative changeover rates of Er3+ show temperature dependence according to the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure rates is challenging via the e