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Glass-Ceramics with Embedded Gallium/Aluminum Nanoalloys Formed by Heat Treatment and Femtosecond Laser Irradiation

Authors

  • Geng Lin,

    1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
    2. Graduate University of the Chinese Academy of Science, Beijing, China
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  • Huaihai Pan,

    1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
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  • Fangfang Luo,

    1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
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  • Qingxi Chen,

    1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
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  • Danping Chen,

    1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
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  • Jianrong Qiu,

    Corresponding author
    1. State Key Laboratory of Luminescence Physics and Chemistry and Institute for Optical Communication Materials, South China University of Technology, Guangzhou, China
    • State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, China
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  • Quanzhong Zhao

    Corresponding author
    • State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
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Authors to whom correspondence should be addressed. e-mails: qjr@zju.edu.cn and zqz@siom.ac.cn

Abstract

We report on the preparation of Ga/Al nanoalloys embedded glass-ceramic by heat treatment as well as femtosecond laser irradiation. The Ga/Al nanoalloys embedded glass-ceramic exhibits intense extinction in the visible region, as well as superior optical nonlinearities. The third-order nonlinear optical properties of the glass-ceramics were investigated by employing Z-scan technique. The maximum nonlinear extinction coefficient β and nonlinear refraction γ value reached 1.14 × 10−11 m/W and 2.01 × 10−17 m2/W, respectively. Three-dimensional Ga/Al nanoalloys embedded structures were also achieved in glass by scanning the focused femtosecond laser beam. These results may find applications for the fabrication of ultrafast optical switches and diffractive optical elements.

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