The nonradiative transition costs follow the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure fees is https://travisbchhs.affiliatblogger.com/85154998/not-known-factual-statements-about-er-yb-yab-crystal