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金纳米棒的自组装与光限幅性能研究

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  • Key Words:金纳米棒;;光限幅;;自组装

  • Abstract:作为一类新型的非线性光学功能材料,贵金属纳米粒子具有非线性光学系数大、响应速度快等优良特性,在非线性光学器件如光信息处理、激光防护等方面具有重要的应用潜力。金纳米棒的非线性光学特性受表面等离子体共振和量子尺寸效应影响,对紫外-可见光显示较强的吸收和瑞利散射。而且由于金纳米棒的长轴吸收的可调性,作为光限幅材料可以实现对宽波段范围内激光的光限幅。金纳米棒的组装方式对其光限幅性能有显著影响。实验中通过对不同聚集状态的金纳米棒的光限幅性能的研究发现,金纳米棒的肩并肩的组装方式导致其光限幅性能明显提高。

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