The nonradiative changeover premiums Keep to the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Power gap. The nonradiative changeover charges of Er3+ exhibit temperature dependence in line with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative rest rates is https://davidw358sqo8.wikicommunication.com/user