A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative transition premiums Adhere to the components WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the Power gap. The nonradiative changeover charges of Er3+ exhibit temperature dependence in keeping with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative relaxation premiums