NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative changeover rates Adhere to the formulation WNR = W (0) exp(-alphap), where by p is the number of phonons matching the Electrical power gap. The nonradiative transition premiums of Er3+ show temperature dependence in line with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative leisure rates is challengi