ER:YB:YAB CRYSTAL CAN BE FUN FOR ANYONE

The nonradiative transition premiums Keep to the method WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the energy gap. The nonradiative changeover fees of Er3+ exhibit temperature dependence according to the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices is complex through the exis