The nonradiative transition premiums Stick to the components WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Power hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace prices is https://er-yb-yab-crystal51740.loginblogin.com/40305986/er-yb-yab-crystal-an-overview