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Keywords:

  • Colloidal crystals, confined;
  • Inverse opals, silicon;
  • Photonic bandgap (PBG);
  • Photonic crystals

Inverse colloidal photonic crystals (see Figure and cover) can be fashioned in the form of free-standing, oriented rectangular- and V-shaped microfibers via a self-assembly strategy. Microspectroscopy of these microfibers is consistent with the existence of a complete photonic bandgap near 1.5 μm, making these microfiber constructions interesting as optical components of microphotonic crystal circuits.