Electrically tunable negative permeability metamaterials based on nematic liquid crystals

Qian Zhao; Lei Kang; Bo Du; Bo Li; Ji Zhou; Hong Tang; Xiao Liang; Baizhe Zhang

doi:10.1063/1.2430485

Electrically tunable negative permeability metamaterials based on nematic liquid crystals

Qian Zhao, Lei Kang, Bo Du, Bo Li, Ji Zhou, Hong Tang, Xiao Liang, Baizhe Zhang

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

272 Scopus citations

Abstract

An electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the transmitted resonance dip of the metamaterial can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210 MHz with respect to the resonance frequency around 11.08 GHz. Numerical simulation shows that the permeability is negative near the resonance frequency, and the frequency range with negative permeability can be dynamically adjusted and widened by about 200 MHz by the electric field. It provides a convenient means to design adaptive metamaterials.

Original language	English (US)
Article number	011112
Journal	Applied Physics Letters
Volume	90
Issue number	1
DOIs	https://doi.org/10.1063/1.2430485
State	Published - 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2430485

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title = "Electrically tunable negative permeability metamaterials based on nematic liquid crystals",

abstract = "An electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the transmitted resonance dip of the metamaterial can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210 MHz with respect to the resonance frequency around 11.08 GHz. Numerical simulation shows that the permeability is negative near the resonance frequency, and the frequency range with negative permeability can be dynamically adjusted and widened by about 200 MHz by the electric field. It provides a convenient means to design adaptive metamaterials.",

author = "Qian Zhao and Lei Kang and Bo Du and Bo Li and Ji Zhou and Hong Tang and Xiao Liang and Baizhe Zhang",

note = "Funding Information: This work is supported by the National Science Foundation of China under Grant Nos. 50425204, 90401012, and 60608016, the National Basic Research Program of China under Subproject No. 2002CB61306, and by the Postdoctoral Science Foundation under Grant No. 20060390043.",

year = "2007",

doi = "10.1063/1.2430485",

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T1 - Electrically tunable negative permeability metamaterials based on nematic liquid crystals

AU - Zhao, Qian

AU - Kang, Lei

AU - Du, Bo

AU - Li, Bo

AU - Zhou, Ji

AU - Tang, Hong

AU - Liang, Xiao

AU - Zhang, Baizhe

N1 - Funding Information: This work is supported by the National Science Foundation of China under Grant Nos. 50425204, 90401012, and 60608016, the National Basic Research Program of China under Subproject No. 2002CB61306, and by the Postdoctoral Science Foundation under Grant No. 20060390043.

PY - 2007

Y1 - 2007

N2 - An electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the transmitted resonance dip of the metamaterial can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210 MHz with respect to the resonance frequency around 11.08 GHz. Numerical simulation shows that the permeability is negative near the resonance frequency, and the frequency range with negative permeability can be dynamically adjusted and widened by about 200 MHz by the electric field. It provides a convenient means to design adaptive metamaterials.

AB - An electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the transmitted resonance dip of the metamaterial can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210 MHz with respect to the resonance frequency around 11.08 GHz. Numerical simulation shows that the permeability is negative near the resonance frequency, and the frequency range with negative permeability can be dynamically adjusted and widened by about 200 MHz by the electric field. It provides a convenient means to design adaptive metamaterials.

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Electrically tunable negative permeability metamaterials based on nematic liquid crystals

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