A SIMPLE KEY FOR ER:YB:YAB CRYSTAL UNVEILED

The nonradiative changeover prices Adhere to the components WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Strength gap. The nonradiative transition prices of Er3+ show temperature dependence in line with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative leisure charges is complex via the e