A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative changeover charges Keep to the system WNR = W (0) exp(-alphap), where by p is the number of phonons matching the Vitality gap. The nonradiative transition premiums of Er3+ exhibit temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure prices is difficult thr