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Keywords:

  • silicon nanowires;
  • structural colors;
  • refractive index;
  • diffraction;
  • nanowire arrays;
  • color generation
Thumbnail image of graphical abstract

Tunable structural color generation from vertical silicon nanowires arranged in different square lattices is realized using simple diffraction. As J. Walia, S. S. Saini, and co-workers report on page 144, the generated colors depend on the angle of incidence of the incoming light, the spacing between the nanowires, and the local refractive index.