Effect of a photonic band gap on scattering from waveguide disorder
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Povinelli, M. L.
Johnson, S. G.
Lidorikis, E.
Joannopoulos, J. D.
Soljacic, M.
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peer reviewed
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Applied Physics Letters
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We derive a general, analytical, coupled-mode theory for disorder-induced scattering in periodic systems that shows that in the experimentally relevant limit of weak disorder, the reflection in a photonic-crystal waveguide is just as low as in a comparable index-guided waveguide. Moreover, since the photonic band gap also blocks radiative loss, the total scattering loss is reduced, and the total transmission is higher. These general results are verified by direct numerical simulations in an example system. (C) 2004 American Institute of Physics.
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crystal slabs, light, propagation, roughness, gratings
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<Go to ISI>://000221062500069
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en
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Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών