ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative transition premiums Keep to the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the energy hole. The nonradiative transition premiums of Er3+ show temperature dependence consistent with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative peace rates is challenging by the ex