High frequency homogenization of zero frequency stop band photonic and phononic crystals

▶ High frequency homogenization of zero frequency stop band photonic and phononic crystals - Introduction and background. Photonic crystal media and metamaterials are topical areas in optics that involve the moulding and guiding of light in desired directions. Such periodic structures are of considerable interest but can also be applied in acoustics, platonics and linear elasticity. Applications range from cloaking to guiding waves in desired cross shape directions (see figure). Over the past...