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首页> 外文期刊>Optics Letters >Complex refractive index measurement for atomic-layer materials via surface plasmon resonance holographic microscopy
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Complex refractive index measurement for atomic-layer materials via surface plasmon resonance holographic microscopy

机译：通过表面等离子体共振全息显微镜的原子层材料复合折射率测量

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摘要

The optical characterization of atomic-layer materials is significant for the clarification of fundamental physical properties of newly emerging nanomaterials. Here we propose to utilize the surface plasmon resonance (SPR) holographic microscopy to measure the complex refractive index (RI) of atomic-layer materials (i.e., graphene). We unambiguously determine the complex RI of single-layer graphene and few-layer graphene by fitting the measured reflection phase shift difference with theoretical values under the five-layer SPR model. The measurement results of the graphene layer grown by chemical vapor deposition at the visible range agree with the previous reports. Our method offers a costeffective and robust avenue to characterize the complex RI ofatomic-layer materials with distinct optical absorption, particularly the two-dimensional materials. (C) 2019 Optical Society of America
机译：原子层材料的光学表征对于澄清新出现的纳米材料的基本物理性质是显着的。 在这里，我们建议利用表面等离子体共振（SPR）全息显微镜测量原子层材料的复折射率（RI）（即石墨烯）。 我们明确地确定单层石墨烯和几层石墨烯的复杂RI，通过拟合测量的反射相位偏移差与五层SCR模型下的理论值。 通过化学气相沉积在可见范围内生长的石墨烯层的测量结果与先前的报道一致。 我们的方法提供了一种成本效益和强大的途径，以表征具有不同光学吸收，特别是二维材料的复杂RI的复杂RI。 （c）2019年光学学会

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  • 来源
    《Optics Letters》 |2019年第12期|共4页
  • 作者

    Dai Siqing; Lu Hua; Zhang Jiwei; Shi Yuping; Dou Jiazhen; Di Jianglei; Zhao Jianlin;

  • 作者单位

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

    Peking Univ Coll Engn Dept Mat Sci &

    Engn Beijing 100871 Peoples R China;

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci MOE Key Lab Mat Phys &

    Chem Extraordinary Condit Xian 710072 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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