NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover prices follow the system WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Electricity gap. The nonradiative changeover costs of Er3+ show temperature dependence in keeping with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative peace costs is sophisticated wit