DETAILS, FICTION AND ER:YB:YAB CRYSTAL

The nonradiative changeover premiums Keep to the components WNR = W (0) exp(-alphap), where by p is the number of phonons matching the energy gap. The nonradiative changeover premiums of Er3+ show temperature dependence in line with the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative peace charges is intricate through