DETAILS, FICTION AND ER:YB:YAB CRYSTAL

The nonradiative changeover rates Keep to the formula WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Power hole. The nonradiative transition fees of Er3+ show temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace premiums is complicated by the exi