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Band structures of coupled electromagnetic slow waves

Journal of Optics A: Pure and Applied Optics, ISSN: 1464-4258, Vol: 6, Issue: 10, Page: 937-942
2004
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Article Description

In this paper, a modified transfer matrix method is applied for the analysis of electromagnetic slow wave propagation in Kronig-Penny photonic crystals. Analytic expressions for Bloch wavenumbers in terms of normalized frequency are derived and the asymptotic behaviour of electromagnetic slow wave propagation in these structures is investigated at different regimes. The tight binding method is also used for the analysis of electromagnetic slow wave propagation in Kronig-Penny photonic crystals and analytic expressions are given. It has been shown that forbidden wavenumbers rather than forbidden frequencies can be observed under specific circumstances.

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