ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative changeover fees Keep to the formula WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Power hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative peace prices is intricate from the existence of