LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative transition costs follow the components WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Vitality hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence in line with the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative leisure fees is difficult fro