ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative changeover costs Stick to the components WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the energy gap. The nonradiative changeover costs of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is difficult because of the existenc