A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative transition costs Adhere to the components WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Strength gap. The nonradiative transition charges of Er3+ exhibit temperature dependence per the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure costs is intricate because