• Acta Optica Sinica
  • Vol. 26, Issue 6, 869 (2006)
[in Chinese]1、2、*, [in Chinese]1, [in Chinese]1, [in Chinese]1, [in Chinese]1, and [in Chinese]1
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  • 1[in Chinese]
  • 2[in Chinese]
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    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Synthesis and Luminescence Properties of Nd3+-Doped Lithium Aluminosilicate Glass-Ceramics[J]. Acta Optica Sinica, 2006, 26(6): 869 Copy Citation Text show less

    Abstract

    The lithium aluminosilicate glasses doped with Nd3+ ions are synthesized using the conventional melting and quenching technique at a relatively low melting temperature by introducing approprate additives. Lithium aluminosilicate glasses are converted to glass-ceramics by controlling the nucleation and crystallization process. The samples are characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electronic microsope (SEM), UV-vis-NIR scanning spectrophotometer and fluorescence spectrometer. Three main fluorescence bands centering at about 890 nm, 1065 nm and 1330 nm are observed, which are correspondent to transitions of 4F3/2→4I9/2, 4F3/2→4I11/2 and 4F3/2→4I13/2, respectively. Crystal phases and the grain size of glass-ceramics are found to affect their luminescent characteristics considerably. The fluorescence intensity increases markedly when Nd3+ ions enter the β-eucryptite solid solutions with the grain size in the range of 10~20 nm, and the effective stimulated cross section σin is 1.931×10-21 cm2 at 1065 nm,which increases by 8% in contrast to the host glass. Quenching occurs when Nd3+ ions locate at β-eucryptite solid solution with the grain size close to the visible light wavelength. Quenching disappears after β-eucryptite solid solution are re-crystallized into β-spodumene solid solutions.
    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Synthesis and Luminescence Properties of Nd3+-Doped Lithium Aluminosilicate Glass-Ceramics[J]. Acta Optica Sinica, 2006, 26(6): 869
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