Construction of Chiral Metamaterial with U-Shaped Resonator Assembly

ORAL

Abstract

Chiral structure can be applied to construct metamaterial with negative refractive index (NRI). In an assembly of double-layered metallic U-shaped resonators with two resonant frequencies $\omega _{H}$ and $\omega _{L}$, the effective induced electric and magnetic dipoles, which are contributed by the specific surface current distributions, are collinear at the same frequency. Consequently, for left circularly polarized light, NRI occurs at \textit{$\omega $}$_{H}$ , whereas for right circularly polarized light it occurs at \textit{$\omega $}$_{L}$. Our design provides a new example to apply chiral structures to tune electromagnetic properties, and could be enlightening in exploring chiral metamaterials.

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Authors

  • Xiang Xiong

    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University

  • Wei-Hua Sun

    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University

  • Yong-Jun Bao

    Department of Mechanical Engineering, Northwestern University, Northwesten University

  • Ru-Wen Peng

    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China, Nanjing University

  • Mu Wang

    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, National Laboratory of Solid State Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China, Natl. Lab. Solid State Microstructures, Nanjing UNiversity, Nanjing 210093, China, National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China

  • Cheng Sun

    Department of Mechanical Engineering, Northwestern University, Northwesten University

  • Xiang Lu

    National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics

  • Jun Shao

    National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics

  • Zhi-Feng Li

    National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics

  • Nai-Ben Ming

    National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University