NOT KNOWN FACTUAL STATEMENTS ABOUT ER:YB:YAB CRYSTAL

The nonradiative transition prices follow the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the energy gap. The nonradiative transition premiums of Er3+ show temperature dependence in step with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative relaxation prices is intricate via the exis