The nonradiative changeover costs follow the formula WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the energy hole. The nonradiative changeover costs of Er3+ exhibit temperature dependence in step with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative peace premiums is https://erybyabcrystal57912.blazingblog.com/34810646/top-guidelines-of-er-yb-yab-crystal