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Reciprocity theorem and perturbation theory for photonic crystal waveguides

: Michaelis, D.; Peschel, U.; Wächter, C.; Bräuer, A.


Physical Review. E 68 (2003), Nr.6, Art. 065601, 4 S.
ISSN: 1063-651X
ISSN: 1539-3755
Fraunhofer IOF ()
photonic crystal waveguide; reciprocity theorem; Polariton; band structure

Starting from Maxwell's equations we derive a reciprocity theorem for photonic crystal waveguides. A set of strongly coupled discrete equations results, which can be applied to the simulation of perturbed photonic crystal waveguides. As an example we analytically study the influence of the dispersion of a two level system on the band structure of a photonic crystal waveguide. In particular, the formation of polariton gaps is discussed.