TOP LATEST FIVE ER:YB:YAB CRYSTAL URBAN NEWS

The nonradiative transition costs Keep to the formula WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the energy hole. The nonradiative changeover costs of Er3+ exhibit temperature dependence consistent with the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative relaxation premiums is intricat