Magnetic control of negative permeability metamaterials based on liquid crystals

Fuli Zhang, Qian Zhao, Lei Kang, Davy P. Gaillot, Xiaopeng Zhao, Ji Zhou, Didier Lippens

    Research output: Contribution to journalArticlepeer-review

    68 Scopus citations


    We report on the tunability, by a magnetic field, of a negative permeability metamaterial consisting of stacked arrays of broadside-coupled split ring resonators infiltrated with liquid crystals (LCs). The resonant frequency shift was numerically assessed by a rigorous anisotropic analysis of the reorientation of LC molecules. Experiments were carried out with a prototype designed and fabricated for X -band operation and infiltrated with a nematic compound with optical birefringence Δn=0.18. Scattering parameters vectorial analysis shows a good agreement between the resonant frequency shifts predicted under anisotropic conditions and those measured under static magnetic control.

    Original languageEnglish (US)
    Article number193104
    JournalApplied Physics Letters
    Issue number19
    StatePublished - 2008

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)


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