Full spectrum ultra-wideband absorber with stacked round hole disks

Li, Xin; Chen, Yutai; Chen, Jian; Jiang, Xinpeng; He, Jie; Jing, Qiang; Yang, Junbo

doi:10.1016/j.ijleo.2021.168297

Cited by 12 publications

(6 citation statements)

References 38 publications

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“…For example, in 2021, Zhao et al proposed a novel broadband absorber based on a quadruple metal structure, which has an average absorption of 98.74 % ranging from 300 nm to 2000 nm [17]. In 2022, Yang et al proposed a full spectrum broadband absorber based on a stacked disk structure, with an average absorption of more than 90 %, bandwidth ranging from 250 nm to 3700 nm [18]. Yi et al studied a wide-angle, broadband solar absorber based on disk and film structure, which realize an average absorption more of than 90 %, bandwidth ranging from 300 nm to 3000 nm [19].…”

Section: Introductionmentioning

confidence: 99%

High-efficiency broadband perfect absorber based on a multilayered pyramid structure

Meng¹,

Liu²,

Chen³

et al. 2022

Phys. Scr.

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In this paper, an ultra-broadband perfect absorber based on a four-layer pyramid metamaterial and a metal insulator metal (MIM) structure has been demonstrated and investigated. Finite-difference time-domain (FDTD) results indicate that the absorption originates from localized surface plasmons and waveguide mode resonance effect. An average absorption of 96.18 % with bandwidth ranging from 308 nm to 2387 nm was achieved, and the average absorption in the entire wave band (200–2800 nm) was approximately 94.64%. The results of the impedance matching theory are consistent with the FDTD simulation. Polarization insensitivity was investigated by studying the absorption characteristic of TE and TM polarizations. The effect of top and bottom materials was investigated and compared in detail. Moreover, by adjusting the geometrical size, the absorption performance can be fine- tuned. In addition, the proposed broadband absorber exhibited excellent absorption stability and environmental refractive index tolerance. Without noble metal materials, the proposed structure can reduce the fabrication costs. We believe that the proposed broadband absorber has potential applications in solar cells, infrared imaging, and thermal emitters.

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Section: Introductionmentioning

confidence: 99%

High-efficiency broadband perfect absorber based on a multilayered pyramid structure

Meng¹,

Liu²,

Chen³

et al. 2022

Phys. Scr.

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“… References Band edges (µm) Bandwidth (µm) Average absorption ( ) Our proposal ( ) 0.2–4.5 4.3 94.71 Our proposal ( ) 0.2–4 3.8 98.11 Our proposal ( ) 0.2–3.25 3.05 99.31 Ref. 58 0.25–3.7 3.45 97.5 Ref. 57 0.3–2.54 2.24 99.17 Ref.…”

Section: Resultsmentioning

confidence: 94%

“…For instance, a wideband absorber in the range of 0.75–3.25 µm with an average absorption up to 80 46 , a Ti-based absorber with the absorption of more than 90 and an average absorption rate over 93.17 in a wide range of 166.8–1926.6 nm 47 , a Ti/ nearly perfect absorber with an average absorption of 97 over 712 nm extending from 354 nm to 1066 nm 48 , and a metasurface-based perfect absorber with an average absorption around 97.5 covering the entire visible band have been reported 49 . In addition to the diversity in the designed structures, plenty of the works concentrated on metasurfaces based on multidisks, conical elements, and pyramid-shaped constituents 50 – 58 . Since the continuous modification of such structures from bottom to top can initiate different resonances, a broadband absorption can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Multi-octave metasurface-based refractory superabsorber enhanced by a tapered unit-cell structure

Habil

Ghahremani

Zapata–Rodríguez

2022

Sci Rep

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An ultra-broadband metasurface-based perfect absorber is proposed based on a periodic array of truncated cone-shaped $$\text {TiO}_2$$ TiO 2 surrounded by TiN/$$\text {TiO}_2$$ TiO 2 conical rings. Due to the refractory materials involved in the metasurface, the given structure can keep its structural stability at high temperatures. The proposed structure can achieve a broadband spectrum of 4.3 µm at normal incidence spanning in the range of 0.2–4.5 µm with the absorption higher than $$90\%$$ 90 % and the average absorption around $$94.71\%$$ 94.71 % . The absorption can be tuned through the angle of the cone. By optimizing geometrical parameters, a super absorption is triggered in the range of 0.2–3.25 µm with the absorption higher than 97.40$$\%$$ % and substantially average absorption over 99$$\%$$ % . In this regard, the proposed structure can gather more than $$99\%$$ 99 % of the full spectrum of solar radiation. Furthermore, the absorption of the designed structure is almost insensitive to the launching angle up to $$50^\circ $$ 50 ∘ for TE polarization, while it has a weak dependence on the incident angle for TM polarization. The proposed structure can be a promising candidate for thermal energy harvesting and solar absorption applications.

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“…[378] In the wavelength range of 3.48-5.82 µm for TM polarization, the given BMA has the minimum absorbance of greater than 80%, and the broadband absorption shows a significant dependence on the unit period. Li et al designed a stacked circular aperture disc BMA with more than 90% absorption in the 3450 nm bandwidth range, [379] these results are impressive and perfect for solar energy collection applications. Besides, a THz metal-free BMA was investigated consisting of a stack of graphite/graphene discs supported by low dielectric constant discs that achieve a broadband absorption of >90% through mergence and superposition of the successive absorption peaks.…”

Section: Vertical Design Strategies For Broadband Metamaterials Absor...mentioning

confidence: 99%

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

Wang

Duan

et al. 2023

Adv Funct Materials

154

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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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Full spectrum ultra-wideband absorber with stacked round hole disks

Cited by 12 publications

References 38 publications

High-efficiency broadband perfect absorber based on a multilayered pyramid structure

High-efficiency broadband perfect absorber based on a multilayered pyramid structure

Multi-octave metasurface-based refractory superabsorber enhanced by a tapered unit-cell structure

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

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