LITTLE KNOWN FACTS ABOUT ER:YB:YAB CRYSTAL.

The nonradiative changeover fees Keep to the formula WNR = W (0) exp(-alphap), where by p is the number of phonons matching the Electricity gap. The nonradiative transition fees of Er3+ exhibit temperature dependence consistent with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices is complicated with th