CONSIDERATIONS TO KNOW ABOUT ER:YB:YAB CRYSTAL

The nonradiative transition charges follow the system WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Strength hole. The nonradiative changeover charges of Er3+ show temperature dependence per the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative relaxation charges is complicated because