A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative transition premiums follow the method WNR = W (0) exp(-alphap), in which p is the number of phonons matching the energy hole. The nonradiative changeover fees of Er3+ exhibit temperature dependence according to the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative relaxation premiums is complicated through