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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Investigation of fast light in three-layer waveguides composed of negative- refraction claddings and an air core
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Investigation of fast light in three-layer waveguides composed of negative- refraction claddings and an air core

机译：由负折射包层和空心芯组成的三层波导的快速光的研究

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摘要

An optical medium with abnormal dispersion supports fast light, which possesses a group velocity faster than the speed of light in a vacuum or even takes on a negative value (a backward wave), and shows exceptional promise for optoelectronic applications. In this article, three-layer dielectric waveguides composed of negative refraction cladding, which is made tip of silicon crystal, and an air core are constructed, where the so-called fast light can propagate a backward wave by modifying the thickness of the air core. The dispersion properties of the fast light are investigated analytically. Finally, numerical results are derived by using the finite-element method to verify the analytical results. The proposed structure might find applications in the field of photonic integrated circuits.
机译：具有异常色散的光学介质支持快速光，其具有比真空中的光速快的速率，甚至是负值（向后波），并且显示出用于光电应用的异常希望。 在本文中，由负折射包层构成的三层电介质波导，其由硅晶体制成，并且构造空气芯，其中所谓的快光可以通过改变空气芯的厚度来传播向后波 。 分析研究了快光的分散性质。 最后，通过使用有限元方法来验证分析结果来导出数值结果。 所提出的结构可能在光子集成电路领域中找到应用。

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  • 作者

    Zhao Zeyang; Pan Guangwu; Qiu Weibin; Wang Zeyu; Ren Junbo; Zhou Hengjie; Qiu Pingping; Kan Qiang;

  • 作者单位

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Informat Sci &

    Engn Fujian Key Lab Light Propagat &

    Transformat Xiamen 361021 Fujian Peoples R China;

    Univ Chinese Acad Sci Coll Mat Sci &

    Optoelect Technol Beijing 100086 Peoples R China;

    Univ Chinese Acad Sci Coll Mat Sci &

    Optoelect Technol Beijing 100086 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用物理学;
  • 关键词

    air core; fast light; negative index; photonic crystal;

    机译：空心;快光;负指数;光子晶体;

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