title: Structural and optical study on antimony-silicate glasses doped with thulium ions.
abstract: Structural, spectroscopic and thermal properties of SiO₂-Al₂O₃-Sb₂O₃-Na₂O glass system doped with 0.2 mol% Tm₂O₃ have been presented. Synthesis of antimony-silicate glasses with relatively low phonon energy (600 cm(-1), which implicates a small non-radiative decay rate) was performed by conventional high-temperature melt-quenching methods. The effect of SiO₂/Sb₂O₃ ratio in fabricated Tm(3+) doped glass on thermal, structural and luminescence properties was investigated. On the basis of structural investigations decomposition of absorption bands in the infrared FTIR region was performed, thus determining that antimony ions are the only glass-forming ions, setting up the lattice of fabricated glasses. Luminescence band at the wavelength of 1.8 μm corresponding to (3)F₄→(3)H₆ transition in thulium ions was obtained under 795 nm laser pumping. It was observed that combination of relatively low phonon energy and greater separation of optically active centers in the fabricated glasses influenced in decreasing the luminescence intensity at 1800 nm.
authors: Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland. Electronic address: d.dorosz@pb.edu.pl.
authors: D
authors: D
authors: Dorosz
authors: Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland.
authors: J
authors: J
authors: Zmojda
authors: Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland.
authors: M
authors: M
authors: Kochanowicz
authors: Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland.
authors: P
authors: P
authors: Miluski
authors: Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland.
authors: P
authors: P
authors: Jelen
authors: Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland.
authors: M
authors: M
authors: Sitarz
mesh_terms: D000965:Antimony / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D008163:Luminescent Measurements; D017640:Silicates / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013932:Thulium / Q000737:chemistry*
chemical_list: D017640:Silicates; D013932:Thulium; D000965:Antimony; C033160:thulium oxide
keywords: Antimony-silicate glass; FT-IR properties; NIR emission; Optical properties; Structural study; Tm(3+) ions