Tunable two-dimensional left-handed material consisting of ferrite rods and metallic wires

Hongjie Zhao, Ji Zhou, Lei Kang, Qian Zhao

    Research output: Contribution to journalArticlepeer-review

    58 Scopus citations

    Abstract

    We demonstrate a magnetically tunable and two-dimensional (2D) left-handed material (LHM) consisting of an array of ferrite rods and metallic wires by experiments and simulations. It shows that the ferrite rod has a 2D isotropic negative permeability. By combining the ferrite rods with metallic wires, we observe experimentally a 2D LH passband that can be tuned dynamically, continuously and reversibly by an external magnetic field within in a wide frequency range with a response of 3.5 GHz/kOe. Retrieved effective parameters based on simulated scattering parameters show that operating frequency and value of negative refraction index can be conveniently tuned by changing the external magnetic field.

    Original languageEnglish (US)
    Pages (from-to)13373-13380
    Number of pages8
    JournalOptics Express
    Volume17
    Issue number16
    DOIs
    StatePublished - Aug 3 2009

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics

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