FACTS ABOUT ER:YB:YAB CRYSTAL REVEALED

The nonradiative changeover costs Keep to the formula WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the Electricity gap. The nonradiative changeover premiums of Er3+ show temperature dependence according to the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace rates is sophisticat