Terahertz negative refraction in a high-temperature superconducting material

Meng Ru Wu, Heng Tung Hsu, Chien Jang Wu, Shoou Jinn Chang

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The phenomenon of negative refraction at terahertz (THz) frequency for a high-temperature superconducting material is theoretically investigated based on the inhomogeneous wave theory. Negative refraction, which arises from the negative refractive angle, can occur when a p-polarized wave is incident from a dielectric to a superconductor. The dependences of negative refractive angle on the angle of incidence, the wave frequency, and the temperature have been analytically studied. The conditions for obtaining a pronounced result in negative refraction are elucidated. The study of negative refraction is of potential use in designing a tunable polarizer. In addition, it is an extended study of a transmission problem that is not treatable from the Fresnel equations in electromagnetics and optics.

    Original languageEnglish
    Article number7008526
    Pages (from-to)230-235
    Number of pages6
    JournalIEEE Transactions on Terahertz Science and Technology
    Volume5
    Issue number2
    DOIs
    Publication statusPublished - 2015 Mar 1

    Keywords

    • Negative refraction
    • polarized wave
    • superconductor
    • two-fluid model

    ASJC Scopus subject areas

    • Radiation
    • Electrical and Electronic Engineering

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