Mechanically stretchable and tunable metamaterial absorber

Zhang, Fuli; Feng, Shuqi; Qiu, Kepeng; Liu, Zijun; Fan, Yuancheng; Zhang, Weihong; Zhao, Qian; Zhou, Ji

doi:10.1063/1.4914502

Cited by 117 publications

(55 citation statements)

References 42 publications

(46 reference statements)

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“…However, the local-resonant nature of metamaterials limits its operation in a narrow frequency band. It is highly desirable to achieve frequency-agile or multi-band operating metamaterial to extend the working band of a manufactured metamaterial18192021222324252627. As part of this development, considerable interest has been focused on the realization of actively controlled metamaterials that exhibit tunable optical response for practical applications in functional optical devices.…”

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confidence: 99%

An electromagnetic modulator based on electrically controllable metamaterial analogue to electromagnetically induced transparency

Fan

Qiao

Zhang

et al. 2017

Sci Rep

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114

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Electromagnetically induced transparency (EIT) is a promising technology for the enhancement of light-matter interactions, and recent demonstrations of the EIT analogue realized in artificial micro-structured medium have remarkably reduced the extreme requirement for experimental observation of EIT spectrum. In this paper, we propose to electrically control the EIT-like spectrum in a metamaterial as an electromagnetic modulator. A diode acting as a tunable resistor is loaded in the gap of paired wires to inductively tune the magnetic resonance, which induces remarkable modulation on the EIT-like spectrum through the metamaterial sample. The experimental measurements confirmed that the prediction of electromagnetic modulation in three narrow bands on the EIT-like spectrum, and a modulation contrast of up to 31 dB was achieved on the transmission through the metamaterial. Our results may facilitate the study on active/dynamical technology in translational metamaterials, which connect extraordinary manipulations on the flow of light in metamaterials, e.g., the exotic EIT, and practical applications in industry.

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confidence: 99%

An electromagnetic modulator based on electrically controllable metamaterial analogue to electromagnetically induced transparency

Fan

Qiao

Zhang

et al. 2017

Sci Rep

Self Cite

114

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“…The example of mechanically tunable metamaterial absorber performing as dielectric resonators located on conductive rubber planar layer is presented in [16]. Described configuration provides a near unity absorption around the magnetic Mie resonance of dielectric resonators.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, most microwave metamaterials controlled by electrically provide functionality only within a narrow spectral range. In the same time, the mechanical adjustment of metamaterials parameters has several advantages among which is a greater spectral range of parameters variation [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Mechanically Tunable Wire Medium Metamaterial in the Millimeter Wave Band

Ivzhenko¹,

Odarenko²,

Tarapov³

2016

PIER Letters

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Abstract-The paper is devoted to experimental and theoretical study of spectra zone characteristics of the wire medium metamaterial with mechanically tunable unit cell. We experimentally demonstrated the effective control possibility of the spectral characteristics of wire medium metamaterial by varying its elementary unit-cell geometry. We established conditions under which the experimental implementation of the wire medium metamaterial at microwaves possesses the properties of a plasma-like medium and the properties band gap structure. A good agreement between the experiment and theory is demonstrated.

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“…This property also works at terahertz frequencies to manipulate the incident electromagnetic radiation. Moreover, there are many techniques to control the resonance response at terahertz frequencies actively and dynamically, including electronic charge injection1415, optical illumination1617, temperature variation1819, and mechanically adjustment2021.…”

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confidence: 99%

Hybrid three-dimensional dual- and broadband optically tunable terahertz metamaterials

Meng

Zhong

Zhang

2017

Sci Rep

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The optically tunable properties of the hybrid three-dimensional (3D) metamaterials with dual- and broadband response frequencies are theoretically investigated in the terahertz spectrum. The planar double-split-ring resonators (DSRRs) and the standup double-split-ring resonators are fabricated on a sapphire substrate, forming a 3D array structures. The bi-anisotropy of the hybrid 3D metamaterials is considered because the stand-up DSRRs are not symmetrical with respect to the electric field vector. Due to the electric and magnetic response realized by the planar and the standup double-split-ring resonators respectively, the dual-band resonance response and the negative refractive index can be achieved. The potential of the phase modulation under photoexcitation is also demonstrated. Further analysis indicates that, photoexcitation of free carriers in the silicon within the capacitive region of the standup DSRRs results in a broad resonance response bandwidth (about 0.47 THz), and also functions as a broadband negative refractive index that roughly lies between 0.80 and 2.01 THz. This tunable metamaterials is proposed for the potential application of electromagnetic wave propagation in terahertz area.

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Mechanically stretchable and tunable metamaterial absorber

Abstract: Articles you may be interested inOmnidirectional and polarization insensitive nearly perfect absorber in one dimensional meta-structure Appl.

Cited by 117 publications

References 42 publications

An electromagnetic modulator based on electrically controllable metamaterial analogue to electromagnetically induced transparency

An electromagnetic modulator based on electrically controllable metamaterial analogue to electromagnetically induced transparency

Mechanically Tunable Wire Medium Metamaterial in the Millimeter Wave Band

Hybrid three-dimensional dual- and broadband optically tunable terahertz metamaterials

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