Fractal plasmonic metamaterials for subwavelength imaging.

  title={Fractal plasmonic metamaterials for subwavelength imaging.},
  author={Xueqin Huang and Shiyi Xiao and Dexin Ye and Jiangtao Huangfu and Zhiyu Wang and Lixin Ran and Lei Zhou},
  journal={Optics express},
  volume={18 10},
We show that a metallic plate with periodic fractal-shaped slits can be homogenized as a plasmonic metamaterial with plasmon frequency dictated by the fractal geometry. Owing to the all-dimensional subwavelength nature of the fractal pattern, our system supports both transverse-electric and transverse-magnetic surface plasmons. As a result, this structure can be employed to focus light sources with all-dimensional subwavelength resolution and enhanced field strengths. Microwave experiments… CONTINUE READING

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