Near-field studies of surface plasmon generation: Optical and terahertz studies

H. W. Kihm, K. G. Lee, M. A. Seo, K. J. Ahn, A. J.L. Adam, J. H. Kang, Q. H. Park, P. C.M. Planken, D. S. Kim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    We study the dielectric constant dependent diffraction phenomena of single slit apertures, both theoretically and experimentally. We experimentally simulate perfect metal and real metal cases by investigating subwavelength diffraction by a single slit, both in nano-optical and in terahertz regimes, keeping the slit-width/wavelength ratio approximately the same for both of frequency regimes. The wave-front in optical regime separates itself into forward propagating beam and surface-bound 90-degree diffracted wave, i.e., surface plasmon polaritons; while the separation of modes is not observed in terahertz regime.

    Original languageEnglish
    Title of host publicationPlasmonics
    Subtitle of host publicationMetallic Nanostructures and Their Optical Properties VI
    DOIs
    Publication statusPublished - 2008
    EventPlasmonics: Metallic Nanostructures and Their Optical Properties VI - San Diego, CA, United States
    Duration: 2008 Aug 102008 Aug 14

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume7032
    ISSN (Print)0277-786X

    Other

    OtherPlasmonics: Metallic Nanostructures and Their Optical Properties VI
    Country/TerritoryUnited States
    CitySan Diego, CA
    Period08/8/1008/8/14

    Keywords

    • Near-field
    • Surface plasmon
    • THz spectroscopy

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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