On the Metasurface-Based Comb Filters

  title={On the Metasurface-Based Comb Filters},
  author={Masih Ghasemi and Muhamad A. Baqir and P. K. Choudhury},
  journal={IEEE Photonics Technology Letters},
This letter reports a new type of plasmonic metamaterial-based comb filter with the metasurface as similar to the Salusbury window, and comprised of three layers - sub-wavelength-sized periodic gold nanorods surrounded by free-space (i.e., the metasurface), silicon, and silver nanolayers. The structure yields multiple absorption peaks upon impinged by electromagnetic waves. The metasurface behaves as a comb filter - certain spectral frequencies are absorbed and the remaining ones are reflected… CONTINUE READING
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