NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative transition fees Adhere to the system WNR = W (0) exp(-alphap), where p is the number of phonons matching the Power hole. The nonradiative changeover fees of Er3+ show temperature dependence consistent with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative relaxation premiums is sophisticated because