Abstract
In this paper, thermal and luminescent properties of antimony-germanate SGS glass and glass-ceramic doped with europium ions as structural probe and phosphorus oxide as nucleation agent have been investigated. The effect of the modified synthesis of glass and heat treatment process on thermal and luminescence properties was discussed in detail. The study of luminescence changes was carried out with 395nm laser excitation, in the temperature range of 50 to 500°C. Fabricated SGS glass and glass-ceramic doped with europium ions have interesting effects in the different relations between radiative transitions. Strong and partially linear changes in asymmetry ratio between electric-dipole transition (EDT) and magneticdipole transition (MDT) as a function of temperature were analyzed as potential ways to obtain the sensitive optical temperature sensor. According to the results we concluded that antimony-germanate glass can be used as active materials for glass-ceramic optical fiber and photonic sensor.
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