Abstract
By virtue of the efficiency of the Dirichlet-to-Neumann map method, we have calculated, for H-polarization (TE mode), the band structure of 2D photonic crystals with a square lattice composed of metallic rods embedded in an air background. The rod in the unit cell is chosen to be circular in shape. Here, from a practical point of view, in order to obtain maximum band gaps, we have studied the band structure as a function of the size of the rods. We have also studied the flat bands appearing in the band structures and have shown that for frequencies around the surface plasmon frequency, the modes are highly localized at the interface between the metallic rods and the air background.
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Sedghi, A., Valiaghaie, S. & Soufiani, A.R. Detailed Study of the TE band structure of two dimensional metallic photonic crystals with square symmetry. Journal of the Korean Physical Society 65, 1020–1023 (2014). https://doi.org/10.3938/jkps.65.1020
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DOI: https://doi.org/10.3938/jkps.65.1020