The nonradiative changeover prices follow the formulation WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the energy gap. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative peace charges is intricate through https://er-yb-yab-crystal52849.anchor-blog.com/13481248/facts-about-er-yb-yab-crystal-revealed