Fabry-Perot tuning of the band-gap polarity in plasmonic crystals

Jin E. Kihm, Y. C. Yoon, D. J. Park, Y. H. Ahn, C. Ropers, C. Lienau, J. Kim, Q. H. Park, D. S. Kim

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    We report experimental observation of Fabry-Perot resonances and Fabry-Perot-induced band-structure flipping in quasi-one-dimensional plasmonic crystals. Angle-resolved transmission spectra of nanoslit arrays in metal films demonstrate band-gap formation resulting from surface plasmon polariton couplings mediated via nanometer-sized waveguide channels. Tuning the waveguide dielectric function and thickness allows for a pronounced resonant enhancement of the coupling strength and band-gap energy and may even induce changes in sign of the coupling-i.e., an effective band-gap flipping. Our results indicate an interesting route towards band-gap engineering in plasmonic crystals.

    Original languageEnglish
    Article number035414
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume75
    Issue number3
    DOIs
    Publication statusPublished - 2007

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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