TOP LATEST FIVE ER:YB:YAB CRYSTAL URBAN NEWS

The nonradiative changeover premiums Stick to the formula WNR = W (0) exp(-alphap), where p is the amount of phonons matching the Strength hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure fees is difficult because