| Abstract: | The spectra, intensity, and duration of trivalent erbium luminescence in a large number of inorganic glasses of various compositions were investigated. The observed absorption and luminescence bands were attributed to transitions between certainsLj levels of the Er3+ ion. It is shown that in all cases the principal portion of the luminescence yield was associated with the4I13/2  4I15/2 transition band with
max = 6500 cm–1. The effects of glass composition, activator concentration, and temperature on the yield and duration of luminescence in the 6500 cm–1 band were studied. An investigation of the effect of temperature on the structure of this band was used to construct a diagram of the crystalline splitting of the4I13/2 and4I15/2 levels in glass. |
