The nonradiative transition charges Stick to the system WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Electrical power gap. The nonradiative changeover costs of Er3+ exhibit temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative relaxation prices https://erybyabcrystal28404.livebloggs.com/39471124/the-basic-principles-of-er-yb-yab-crystal