Polarization-dependent aluminum metasurface operating at 450 nm.

  title={Polarization-dependent aluminum metasurface operating at 450 nm.},
  author={Emil H{\o}jlund-Nielsen and Xiaolong Zhu and Marcus S. Carstensen and Michael Korning S{\o}rensen and Christoph Vannahme and N. Asger Mortensen and Anders Kristensen},
  journal={Optics express},
  volume={23 22},
We report on a polarization-dependent plasmonic aluminum-based high-density metasurface operating at blue wavelengths. The fabricated sub-wavelength structures, tailored in size and geometry, possess strong, localized, plasmonic resonances able to control linear polarization. Best performance is achieved by rotating an elongated rectangular structure of length 180 nm and width 110 nm inside a square lattice of period 250 nm. In the case of 45 degrees rotation of the structure with respect to… 

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