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Keywords:

  • Inverse opals, silicon;
  • Micromolding;
  • Photonic crystals, colloidal;
  • Silica

High refractive index contrast silicon colloidal photonic crystals having a different topology to those previously reported have been synthesized. A new process of colloidal-crystal templating based on micromolding in inverse silica opals (MISO) is used (see Figure), and photonic crystals so built present a full photonic bandgap, as indicated by band structure calculations.