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Opt Express. 2011 Dec 5;19(25):25651-6. doi: 10.1364/OE.19.025651.

Surface modes of three-dimensional photonic crystals constructed using a top-down approach.

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  • 1Department of Electronic Science and Engineering, Kyoto University, Kyoto, Japan.


We have investigated the photonic modes at the surface of three-dimensional photonic crystals fabricated using a top-down approach involving two-step etching at angles of ± 45°. Numerical simulations revealed the properties of these surface modes, including their polarization characteristics and dependence on the surface structure. The formation of surface modes was experimentally demonstrated using an evanescent-coupling method and agreed well with the simulations.

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