Transmission and absorption spectra of aluminophosphate-doped glasses with rare-earth ions

Aluminophosphate glasses doped with rare-earth ions have recently attracted a large interest owing to their relevant nonlinear optical properties. Until now, all studies were done over the glasses doped with rare - earth ions, in which the rare earth ions were into a vitreous silica matrix. Our study was made as for rare - earth ions (Sm3+, Dy3+, Ce3+ or Ce4+ and Eu3+) into a vitreous aluminophosphate matrix. In the first step, the samples of rare - earth doped glasses were obtained by melting the raw materials batch and then by adding rare - earth oxides (Dy2O3, Sm2O3, Eu2O3) In the second step, the resulted glass was annealed. By mean of a spectrophotometer(SPECORD M-42), were drawn absorption and transmission spectra, in ultraviolet - visible (uv - vis) domain. For infrared (ir) domain we used a SHIMADZU - FTIR - 8001PC spectrophotometer.