The nonradiative changeover costs follow the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Power hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative peace prices is difficult https://perryl665cpa0.jasperwiki.com/user