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Transparent Ni-doped ZnO-Al2O3-SiO2 system glass-ceramics with broadband infrared luminescence |
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| Authors: | Botao Wu Jianrong Qiu Mingying Peng Jinjun Ren Xiongwei Jiang |
| Affiliation: | a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China b Graduate School of the Chinese Academy of Sciences, Beijing 100039, China c Department of Materials Science, Zhejiang University, Hangzhou 310027, China |
| Abstract: | We report transparent Ni2+-doped ZnO-Al2O3-SiO2 system glass-ceramics with broadband infrared luminescence. After heat-treatment, ZnAl2O4 crystallite was precipitated in the glasses, and its average size increased with increasing heat-treatment temperature. No infrared emission was detected in the as-prepared glass samples, while broadband infrared luminescence centered at 1310 nm with full width at half maximum (FWHM) of about 300 nm was observed from the glass-ceramics. The peak position of the infrared luminescence showed a blue-shift with increasing heat-treatment temperature, but a red-shift with an increase in NiO concentration. The mechanisms of the observed phenomena were discussed. These glass-ceramics are promising as materials for super broadband optical amplifier and tunable laser. |
| Keywords: | 42.70.&minus a 42.70.Ce 81.40.Tv |
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