The nonradiative changeover prices Keep to the components WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Power gap. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative relaxation charges https://paulv471fji7.wikihearsay.com/user