ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative changeover fees Keep to the formula WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Strength gap. The nonradiative changeover premiums of Er3+ show temperature dependence according to the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative leisure prices is complex from