18 April 2006 Linear waveguides in photonic crystals based on periodic arrangement of spheres
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We demonstrate the possibility of waveguiding electromagnetic waves in a monolayer of dielectric spheres. While light is confined vertically by index guiding, a triangular superlattice monolayer of spheres was found to exhibit a photonic band gap below the light cone, thereby preventing light from propagating laterally. A gap map of this structure is presented. We propose a possible waveguide configuration that yields two non-degenerate defect modes lying within the photonic band gap. Such a structure may be particularly interesting for coupling light into self-assembled colloidal photonic crystals.
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Kevin Vynck, Kevin Vynck, David Cassagne, David Cassagne, Emmanuel Centeno, Emmanuel Centeno, } "Linear waveguides in photonic crystals based on periodic arrangement of spheres", Proc. SPIE 6182, Photonic Crystal Materials and Devices III (i.e. V), 618226 (18 April 2006); doi: 10.1117/12.663028; https://doi.org/10.1117/12.663028

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