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

doi:10.1063/1.2926678

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

School of Physical Science and Technology

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

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 language	English
Article number	193104
Journal	Applied Physics Letters
Volume	92
Issue number	19
DOIs	https://doi.org/10.1063/1.2926678
State	Published - 2008

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10.1063/1.2926678

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abstract = "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.",

author = "Fuli Zhang and Qian Zhao and Lei Kang and Gaillot, {Davy P.} and Xiaopeng Zhao and Ji Zhou and Didier Lippens",

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AU - Zhang, Fuli

AU - Zhao, Qian

AU - Kang, Lei

AU - Gaillot, Davy P.

AU - Zhao, Xiaopeng

AU - Zhou, Ji

AU - Lippens, Didier

PY - 2008

Y1 - 2008

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AB - 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.

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M3 - 文章

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SN - 0003-6951

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Magnetic control of negative permeability metamaterials based on liquid crystals

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