LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative transition fees Stick to the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace costs is sophisticated beca