The nonradiative changeover prices Adhere to the formulation WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Electrical power hole. The nonradiative transition charges of Er3+ show temperature dependence per the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative rest charges is https://louislrxff.qodsblog.com/34827728/the-5-second-trick-for-er-yb-yab-crystal