Select Axial-Symmetry Cylinder-Segments as Basic Scattering Units in 2D Photonic Crystals

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Abstract:

Scattering units or building blocks are the basic elements for photonic crystal lattices. Photonic bandgaps can be tuned and improved in two-dimensional (2D) triangular lattices, as well as in square lattices by introducing axial-symmetry cylinder-segments instead of cylinders as basic scattering units. Owing to the changes of bulks, reflectance effect of electromagnetic waves will be different both in TE modes and in TM modes. The widths of bandgaps for the two polarization modes can be adjusted and matched to overlap in some range.

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80-83

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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