Plasmonic Bloch oscillations in chirped metal-dielectric structures

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    We study the propagation of plasmon polaritons in one-dimensional chirped metal-dielectric layered structures. We find an optical Wannier-Stark ladder in the mode spectrum and analyze Bloch oscillations associated with the coupling of surface plasmons localized at the metal-dielectric interfaces. For long structures, we find that the energy flow may dramatically change its direction, thus providing possibilities for the beam steering in the transmission band.

    Original languageEnglish
    Article number161105
    JournalApplied Physics Letters
    Issue number16
    Publication statusPublished - 2009


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