The nonradiative changeover costs follow the system WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Electrical power gap. The nonradiative changeover fees of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest premiums https://cashjnolj.csublogs.com/41938445/er-yb-yab-crystal-an-overview