The nonradiative changeover prices Adhere to the formula WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the Vitality gap. The nonradiative changeover costs of Er3+ exhibit temperature dependence per the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure costs is complicated https://erybyabcrystal13306.wizzardsblog.com/34735998/the-best-side-of-er-yb-yab-crystal