摘要Transparent Ni 2+ -doped magnesium aluminosilicate glass ceramics are prepared. The formation of petalite-type crystallites in the glass ceramics is confirmed by x-ray diffraction. Broadband infrared luminescence centred at around 1235nm with full width at half maximum (FWHM) of about 300nm is observed from the Ni 2+ -doped glass ceramics. The observed infrared emission could be attributed to the 3T 2(F) →3 A 2(F) transition of octahedral Ni 2+ ions in petalite-type crystallites. The product of the fluorescence lifetime and the stimulated emission cross sections is 1.2×10 -24 cm 2s.
Abstract：Transparent Ni 2+ -doped magnesium aluminosilicate glass ceramics are prepared. The formation of petalite-type crystallites in the glass ceramics is confirmed by x-ray diffraction. Broadband infrared luminescence centred at around 1235nm with full width at half maximum (FWHM) of about 300nm is observed from the Ni 2+ -doped glass ceramics. The observed infrared emission could be attributed to the 3T 2(F) →3 A 2(F) transition of octahedral Ni 2+ ions in petalite-type crystallites. The product of the fluorescence lifetime and the stimulated emission cross sections is 1.2×10 -24 cm 2s.
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