The nonradiative transition costs Stick to the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Power hole. The nonradiative changeover costs of Er3+ exhibit temperature dependence according to the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative leisure rates is https://edwingghgc.bloguetechno.com/a-review-of-er-yb-yab-crystal-68240016