Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Fang, Bo; Li, Boya; Peng, Yandong; Li, Chenxia; Hong, Zhi; Jing, Xufeng

doi:10.1002/mop.31890

Cited by 74 publications

(13 citation statements)

References 38 publications

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“…[73][74][75][76][77] By designing the metamaterial structure reasonably, the impedance of the absorber is matched with the impedance of the free space, thereby obtaining the best absorption effect. [78,79] To comprehend the absorption mechanism, the equivalent circuit theory has been broadly utilized. [80][81][82][83][84] Representing periodic patterns through the resistance-inductance-capacitance (RLC) circuit model, where the equivalent impedance (Z u ) can be described in Equation (1) [85][86][87]…”

Section: Design Principles and Methods Of Absorbersmentioning

confidence: 99%

“…[ 73–77 ] By designing the metamaterial structure reasonably, the impedance of the absorber is matched with the impedance of the free space, thereby obtaining the best absorption effect. [ 78,79 ] To comprehend the absorption mechanism, the equivalent circuit theory has been broadly utilized. [ 80–84 ] Representing periodic patterns through the resistance–inductance–capacitance (RLC) circuit model, where the equivalent impedance (

Z_{\text{u}}

) can be described in Equation () [ 85–87 ]

\textrm{ } Z_{\text{u}} = R + j \omega L + \frac{1}{j \omega C}

where R , C , and L are the equivalent resistance, capacitance, and inductance of periodic patterns, respectively.…”

Section: Design and Preparation Of Masmentioning

confidence: 99%

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Research Progress in Tunable Metamaterial Absorbers

Liu,

Li,

Fang

et al. 2023

Advanced Photonics Research

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Since the initial discovery of metamaterial absorbers (MAs), they generate significant interest across the electromagnetic device industry due to their capacity to attain subwavelength magnitudes, adaptable design, and almost complete absorption. In recent years, there has been a growing focus on incorporating active materials into MAs, making it a current focal point of investigation. In the past few years, MAs have seen the integration of various active materials and configurations thanks to continuous exploration and innovation. Herein, comprehensive and systematic research on different tuning methods of MAs is reviewed, highlighting innovative materials and unique designs to accurately control the electromagnetic absorption characteristics of MAs. Key parameters, such as the operating frequency and relative tuning range, are summarized and compared to provide guidance for optimization design. Finally, the challenges of tunable MAs and their future prospects are also summarized.

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Section: Design Principles and Methods Of Absorbersmentioning

confidence: 99%

Z_{\text{u}}

) can be described in Equation () [ 85–87 ]

\textrm{ } Z_{\text{u}} = R + j \omega L + \frac{1}{j \omega C}

where R , C , and L are the equivalent resistance, capacitance, and inductance of periodic patterns, respectively.…”

Section: Design and Preparation Of Masmentioning

confidence: 99%

Research Progress in Tunable Metamaterial Absorbers

Liu,

Li,

Fang

et al. 2023

Advanced Photonics Research

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“…The phase difference accumulated during the propagation of light waves in transmission phase metasurfaces DOI: 10.1002/qute.202300124 is primarily used to construct metasurface devices. [37][38][39][40][41][42][43] Geometric phase metasurfaces use the phase difference generated by the different geometric paths of the electromagnetic wave in the process of polarization state transformation to control the light wave transmission phase. [45][46][47][48][49][50][51][52][53][54][55][56] Currently, most metasurface devices are based on single-phase modulation.…”

Section: Introductionmentioning

confidence: 99%

Flexible Control of Phase and Polarization based on All‐Dielectric Metamaterials

Zhang

et al. 2023

Adv Quantum Tech

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A metasurface is a planar structure that can flexibly control the polarization, phase, and amplitude of incident electromagnetic waves. An all‐dielectric hexagonal cell structure to reduce the interaction between cells and achieve efficient parametric regulation of electromagnetic waves is proposed. The single resonant transmission phase and the geometric phase are superimposed to realize the composite phase unit structure and construct a multifunctional flat metasurface device. The designed metasurface can flexibly tune the phase and polarization of incident electromagnetic waves and enable multifunctional integration phenomena, such as polarization separation, light intensity convergence, and vector light generation, on a single metasurface.

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“…Also, the concept of encoding metasurface began to capture people's attention. For example, it can flexibly and efficiently change the characteristics of electromagnetic wave amplitude, phase, propagation mode and other aspects [27][28][29][30][31][32][33][34][35][36][37][38][39]. At the same time, it also has the advantages of simple preparation process, large-scale integration, low loss, etc., which also makes encoding metasurfaces have broad application prospects in the fields of holographic imaging [27], vortex beam generation [16,17], and stealth technology.…”

Section: Introductionmentioning

confidence: 99%

Broadband convolutional scattering characteristics of all dielectric transmission Pancharatnam–Berrygeometric phase metasurfaces

Li¹,

Jin²,

Jing³

et al. 2022

Optica Applicata

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In order to obtain the broadband scattering characteristics, we propose a superperiodic cell structure with all-dielectric material to construct Pancharatnam–Berry geometric phase encoding metasurfaces. Because we cannot design or prepare infinitesimal coding unit particles, according to the generalized Snell’s law, we can only obtain discrete scattering angle regulation for the basic coding metasurface sequence. In order to obtain multi-angle scattering characteristics, we introduce the Fourier convolution principle in digital signal processing on the Pancharatnam–Berry geometric phase encoding metasurfaces. By using the addition and subtraction operations on two encoding metasurface sequences, a new encoding metasurface sequence can be obtained with different deflection angle. Fourier convolution operations on the encoding metasurfaces can provide an efficient method in optimizing encoding patterns to achieve continuous scattering beams. The addition and subtraction methods are also applicable to the checkerboard coding mode. The combination of Fourier convolution principle and Pancharatnam–Berry phase coded metasurface in digital signal processing can realize more powerful electromagnetic wave manipulation capability.

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Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Cited by 74 publications

References 38 publications

Research Progress in Tunable Metamaterial Absorbers

Research Progress in Tunable Metamaterial Absorbers

Flexible Control of Phase and Polarization based on All‐Dielectric Metamaterials

Broadband convolutional scattering characteristics of all dielectric transmission Pancharatnam–Berrygeometric phase metasurfaces

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