A SIMPLE KEY FOR ER:YB:YAB CRYSTAL UNVEILED

The nonradiative transition charges Adhere to the formula WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the energy gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace rates is intricate through the existence