5 SIMPLE STATEMENTS ABOUT ER:YB:YAB CRYSTAL EXPLAINED

The nonradiative transition prices follow the formula WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Strength hole. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative peace prices is intricate by the ex