Design of a Multilayer Broadband Switchable Absorber Based on Semiconductor Switch

Hu, Ning; Zhang, Jihong; Zha, Song; Liu, Chenxi; Liu, Hanqing; Liu, Peiguo

doi:10.1109/lawp.2019.2891839

Cited by 19 publications

(4 citation statements)

References 8 publications

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“…[ 396 ] The combination of PIN and resistor enables the BMA to cover the bandwidth from S‐band to C‐band. [ 397 ] By suppressing the parasitic capacitive effect of PIN, [ 398 ] the designed BMA can achieve high absorption in the broadband range from 3.91 to 9.77 GHz.…”

Section: Design Strategies Of Broadband Metamaterials Absorbersmentioning

confidence: 99%

“…[390][391][392] With these reasons in mind, the researchers decided to combine the transmission line theory with the resonance mechanism of Q-factor reduction, [125,129] to construct a new design method of loading aggregate elements onto the MAs to broaden their absorption bandwidth and increase absorbance. [173,[277][278][279][393][394][395][396][397][398] Figure 8a illustrates a BMA using an electrodynamic metal split-ring resonator loaded with a lumped resistor, [399] [399] Copyright 2016, Springer Nature. d) Schematic diagram of the PIN diode-based BMA and its e) physical drawing.…”

Section: Adding Active Materials Designs For Broadband Metamaterials ...mentioning

confidence: 99%

“…[ 390–392 ] With these reasons in mind, the researchers decided to combine the transmission line theory with the resonance mechanism of Q ‐factor reduction, [ 125,129 ] to construct a new design method of loading aggregate elements onto the MAs to broaden their absorption bandwidth and increase absorbance. [ 173,277–279,393–398 ]…”

Section: Design Strategies Of Broadband Metamaterials Absorbersmentioning

confidence: 99%

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Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

117

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Metamaterial absorbers have been widely studied and continuously concerned owing to their excellent resonance features of ultra-thin thickness, light-weight, and high absorbance. Their applications, however, are typically restricted by the intrinsic dispersion of materials and strong resonant features of patterned arrays (mainly referring to narrow absorption bandwidth). It is, therefore essential to reassert the principles of building broadband metamaterial absorbers (BMAs). Herein, the research progress of BMAs from principles, design strategies, tunable properties to functional applications are comprehensively and deeply summarized. Physical principles behind broadband absorption are briefly discussed, typical design strategies in realizing broadband absorption are further emphasized, such as top-down lithography, bottom-up self-assembly, and emerging 3D printing technology. Diversified active components choices, including optical response, temperature response, electrical response, magnetic response, mechanical response, and multi-parameter responses, are reviewed in achieving dynamically tuned broadband absorption. Following this, the achievements of various interdisciplinary applications for BMAs in energy-harvesting, photodetectors, radar-IR dual stealth, bolometers, noise absorbing, imaging, and fabric wearable are summarized. Finally, the challenges and perspectives for future development of BMAs are discussed.

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Section: Design Strategies Of Broadband Metamaterials Absorbersmentioning

confidence: 99%

Section: Adding Active Materials Designs For Broadband Metamaterials ...mentioning

confidence: 99%

Section: Design Strategies Of Broadband Metamaterials Absorbersmentioning

confidence: 99%

See 1 more Smart Citation

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

117

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“…Nowadays, researchers have proposed some dynamically tunable metamaterial absorbers 18 – 20 The tunable materials mainly include novel 2D materials, such as graphene, 21 – 23 molybdenum disulfide (MoS 2 ), and phase change materials, such as vanadium oxide (VO 2 ) 24 – 26 Also, most common metamaterial absorbers involve metal parts, but the change of electrical performance of the metal at higher frequencies would lead to the performance degradation of the device 27 , 28 .…”

Section: Introductionmentioning

confidence: 99%

Carbon-based ultrabroadband tunable terahertz metasurface absorber

Nie,

He,

Cao

2024

Adv. Photon. Nexus

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.Carbon-based materials, such as graphene and carbon nanotubes, have emerged as a transformative class of building blocks for state-of-the-art metamaterial devices due to their excellent flexibility, light weight, and tunability. In this work, a tunable carbon-based metal-free terahertz (THz) metasurface with ultrabroadband absorption is proposed, composed of alternating graphite and graphene patterns, where the Fermi level of graphene is adjusted by varying the applied voltage bias to achieve the tunable ultrabroadband absorption characteristics. In particular, when the Fermi level of graphene is 1 eV, the absorption coefficient exceeds 90% from 7.24 through 16.23 THz, and importantly, the absorption bandwidth reaches as much as 8.99 THz. In addition, it is polarization-insensitive to incident waves and maintains a high absorption rate at an incident angle of up to 50 deg. This carbon-based device enjoys higher absorption bandwidth, rates, and performance compared to conventional absorbers in the THz regime and can be potentially applied in various fields, including THz wave sensing, modulation, as well as wearable health care devices, and biomedicine detection.

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Reconfigurable Metasurfaces for Frequency Selective Absorption

Jeong

Lim

et al. 2020

Advanced Optical Materials

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Metasurfaces can provide novel functionality for absorbing electromagnetic waves through a periodic array of inductive/capacitive resonators by controlling the material's permittivity and permeability. This attractive characteristic makes them widely applicable to various electromagnetic applications. However, conventional metasurfaces are dispersive and suffer from a narrow bandwidth with uncontrollable and unchangeable functions because the effective permittivity and permeability are tailored to a certain resonance frequency. Therefore, many studies have focused on how to increase the absorption frequency bandwidth and control the absorption frequency by using reconfigurable metasurfaces. This paper presents a report on the most recent progress in the realization of reconfigurable metasurfaces based on advanced materials for frequency‐selective absorption in the microwave, millimeter‐wave, sub‐terahertz, terahertz, and visible ranges. Furthermore, their tuning ratios for different advanced materials and spectra are summarized and compared. This progress report provides guidelines for the material selection for and the design of reconfigurable metasurfaces.

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Design of a Multilayer Broadband Switchable Absorber Based on Semiconductor Switch

Cited by 19 publications

References 8 publications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Carbon-based ultrabroadband tunable terahertz metasurface absorber

Reconfigurable Metasurfaces for Frequency Selective Absorption

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