Effect of ion exchange on luminescence properties of neodimium in surface layer of glasses

摘要

Abstract: The influence of ion exchange processing on spectral-luminescence properties of surface layers was investigated for neodimium doped silicate and phosphate glasses. It was found that ion exchange resulted in 10 - 15% decrease of luminescence life-time T. The annealing of samples produced increase of T up to values corresponding to substrate glass. These effects has been explained by simultaneous action of two mechanisms - luminescence quenching in surface layer by O-H groups and variation of radiative probabilities for neodymium ions as a result of mechanical diffusion stresses which range up to 1 GPa.!9