Magnetotunable left-handed material consisting of yttrium iron garnet slab and metallic wires

Zhao, Hongjin; Zhou, Ji; Zhao, Qian; Li, Bo; Kang, Lei; Bai, Yang

doi:10.1063/1.2790500

Cited by 104 publications

(71 citation statements)

References 19 publications

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“…27 In addition, tunable metamaterials can be used for switching and modulating EM waves if the properties of metamaterials can be controlled. Different modulation approaches were demonstrated, including electrically/optically pumping the semiconductor constituent of the metamaterials, [32][33][34][35] electrocontrol of the anisotropic optical constant of liquid crystal inclusions, 36,37 external DC magnetic field tuning 38,39 and the thermal effect. 40,41 Another interesting application of metamaterials is perfect absorbers, stemming from the possibility to design metamaterial elements which can individually absorb the electric and magnetic components of incident EM waves.…”

Section: Negative Index Metamaterials and Applications Of Metamaterialsmentioning

confidence: 99%

Metamaterials: a new frontier of science and technology

Liu¹,

2011

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Metamaterials, artificial composite structures with exotic material properties, have emerged as a new frontier of science involving physics, material science, engineering and chemistry. This critical review focuses on the fundamentals, recent progresses and future directions in the research of electromagnetic metamaterials. An introduction to metamaterials followed by a detailed elaboration on how to design unprecedented electromagnetic properties of metamaterials is presented. A number of intriguing phenomena and applications associated with metamaterials are discussed, including negative refraction, sub-diffraction-limited imaging, strong optical activities in chiral metamaterials, interaction of meta-atoms and transformation optics. Finally, we offer an outlook on future directions of metamaterials research including but not limited to three-dimensional optical metamaterials, nonlinear metamaterials and ''quantum'' perspectives of metamaterials (142 references).

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Section: Negative Index Metamaterials and Applications Of Metamaterialsmentioning

confidence: 99%

Metamaterials: a new frontier of science and technology

Liu¹,

2011

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“…In the vicinity of ferromagnetic resonance (FMR), the effective permeability of ferromagnetic materials can be negative. This phenomenon was demonstrated experimentally by using YIG slabs at 10 GHz [7] and (La:Sr)MnO 3 layers at 90 GHz [8]. These are the few examples of metamaterials utilizing ferrosubstances.…”

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confidence: 94%

Theoretical Study and Experimental Realization of a Low-Loss Metamaterial Operating at the Millimeter-Wave Regime: Demonstrations of Flat- and Prism-Shaped Samples

Alıcı

Özbay

2010

IEEE J. Select. Topics Quantum Electron.

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Abstract-We designed a low-loss double-negative composite metamaterial that operates at the millimeter-wave regime. A negative passband with a peak transmission value of -2.7 dB was obtained experimentally at 100 GHz. We performed transmissionbased qualitative effective medium theory analysis numerically and experimentally to prove the double-negative nature of the metamaterial. These results were supported by the standard retrieval analysis method and the study was extended by reporting the fractional bandwidth and loss of the metamaterial as the number of layers in the propagation direction increased. We numerically calculated 2-D field map and experimentally confirmed far-field radiation response of horn antenna and metamaterial lens composite. Finally, we demonstrated that the effective index of the metamaterial was negative by performing far-field angular scanning measurements for a metamaterial prism. We simulated the prism by using the Drude-Lorentz model and obtained the scattered field map in two dimensions at millimeter-wavelengths.Index Terms-Metamaterials, metaprism, millimeter wave, negative refraction.

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“…Capacitor-loaded split ring resonators were proposed as tunable metamaterial components [23]. By using yttrium iron garnet, it was shown that tunable LHMs can also be realized [24,25]. Some tunable LHMs based on highdielectric materials were also proposed and investigated.…”

Section: Introductionmentioning

confidence: 99%

A Tunable Left-Handed Metamaterial Based on Modified Broadside-Coupled Split-Ring Resonators

Wang¹,

Qu²,

Zhang³

et al. 2009

PIER Letters

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Abstract-Based on the broadside-coupled split-ring resonator (BC-SRR), a tunable left-handed metamaterial (LHM) was proposed in this paper. The two rings of BC-SRR are etched on two separate substrates so that the coupling between the two rings can be adjusted by slightly slipping one of the two substrates relative to the other one. Thus, the magnetic resonance frequency of the modified BC-SRR can be tuned. By combining the modified BC-SRR (MBC-SRR) with continuous conducting wires, a tunable LHM can be realized. The tunable LHM can realize both rough and minor tunings by minor slips along and perpendicular to the gap direction of BC-SRR, respectively. The proposed tunable LHM has many potential applications in microwave devices.

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Magnetotunable left-handed material consisting of yttrium iron garnet slab and metallic wires

Cited by 104 publications

References 19 publications

Metamaterials: a new frontier of science and technology

Metamaterials: a new frontier of science and technology

Theoretical Study and Experimental Realization of a Low-Loss Metamaterial Operating at the Millimeter-Wave Regime: Demonstrations of Flat- and Prism-Shaped Samples

A Tunable Left-Handed Metamaterial Based on Modified Broadside-Coupled Split-Ring Resonators

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