NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover rates follow the formula WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Power hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence consistent with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative leisure fees is complex with the exis