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Bends and splitters for self-collimated beams in two-dimensional triangular lattice photonic crystals

机译：二维三角晶格光子晶体中自准直光束的弯曲和分离器

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摘要

By introducing a line defect and a V-shaped defect into two-dimensional triangular lattice photonic crystals, a 60 deg beam bend, a Y-shaped beam slitter, and a one-to-three beam splitter are designed based on the self-collimation effect of photonic crystals (PCs). By analyzing the equi-frequency contours calculated with the plane wave expansion method, the frequency for self-collimation in the PC is determined. By using the finite-difference time-domain method, the beam bending efficiency and splitting ratios of the device as a function of the defect radius are calculated. These results are confirmed by computational simulations that provide field distributions of light propagating in the structures. The designed beam bend and splitters offer more choices for beam control in the design Of photonic integrated Circuits.
机译：通过将线缺陷和V形缺陷引入二维三角晶格光子晶体，基于自准直设计了60度光束弯曲，Y形分束器和1-3分束器光子晶体（PC）的影响。通过分析用平面波扩展法计算出的等频轮廓，确定PC中自准直的频率。通过使用时域有限差分法，可以计算出器件的束弯曲效率和分束比与缺陷半径的关系。这些结果通过计算仿真得到了证实，该仿真提供了在结构中传播的光的场分布。在光子集成电路设计中，设计的光束弯曲和分离器为光束控制提供了更多选择。

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  • 来源
    《Optical engineering》 |2011年第11期|p.114002.1-114002.5|共5页
  • 作者

    Zhenhai Wu; Kang Xie; Huajun Yang; Ping Jiang;

  • 作者单位

    University of Electronic Science and Technology of China School of Optoelectronic Information Chengdu, 610054, China;

    Hefei University of Technology School of Instrument Science and Opto-electronic Engineering Hefei, 230009, China;

    University of Electronic Science and Technology of China School of Physical Electronics Chengdu, 610054, China;

    University of Electronic Science and Technology of China School of Physical Electronics Chengdu, 610054, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    photonic integrated circuits; beam bend; beam splitter; photonic; crystals; self-collimation;

    机译：光子集成电路;光束弯曲分束器;光子晶体自我准直;

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