A SECRET WEAPON FOR ER:YB:YAB CRYSTAL

The nonradiative transition prices Stick to the formula WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the Power gap. The nonradiative transition prices of Er3+ show temperature dependence in step with the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative rest charges is complicated with the exis