The nonradiative transition charges Keep to the method WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the energy hole. The nonradiative changeover costs of Er3+ exhibit temperature dependence in step with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative leisure costs https://laneklkie.blogproducer.com/40047134/a-review-of-er-yb-yab-crystal