5 SIMPLE TECHNIQUES FOR ER:YB:YAB CRYSTAL

The nonradiative transition costs Stick to the system WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the energy gap. The nonradiative changeover costs of Er3+ show temperature dependence according to the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative relaxation charges is sophisticated vi