THz transmittance in one-dimensional superconducting nanomaterial-dielectric superlattice

Arafa H. Aly, Sang Wan Ryu, Heng Tung Hsu, Chien-Jang Wu

    Research output: Contribution to journalArticle

    69 Citations (Scopus)

    Abstract

    Electromagnetic wave transmission at THz in a one-dimensional superconducting metallo-dielectric superlattice has been theoretically investigated based on the transfer matrix method together with superconductor electromagnetics. The results of transmittance spectra show the existence of a cutoff frequency in such a bilayer periodic structure. Electromagnetic wave is allowed to propagate through the structure when its frequency is higher than cutoff frequency. However, it will be totally reflected at a frequency below cutoff frequency. This cutoff frequency is strongly dependent on thicknesses of the superconductor and dielectric layers, and the temperature as well. In temperature-dependent transmittance, strong oscillations can be seen at higher temperatures.

    Original languageEnglish
    Pages (from-to)382-384
    Number of pages3
    JournalMaterials Chemistry and Physics
    Volume113
    Issue number1
    DOIs
    Publication statusPublished - 2009 Jan 15

    Keywords

    • Band gap
    • Photonic crystal
    • Superconductor
    • Superlattice

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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