Enhancement of multi-band absorption based on compound structure metamaterials

Li, Shengyong; Ai, Xiaochuan; Wu, Rui‐Xin; Chen, Jiajun; Jiang, Tao

doi:10.1016/j.optlastec.2019.02.026

Cited by 10 publications

(2 citation statements)

References 41 publications

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“…At other wavelengths, the real component of the normalized impedance holds a positive value slightly greater than one. These phenomena aid the absorption properties of the proposed symmetric design due to the high impedance matching the free space 44 .…”

Section: Resultsmentioning

confidence: 90%

Polarization and angular insensitive bendable metamaterial absorber for UV to NIR range

Shuvo

Hossain

Mahmud

et al. 2022

Sci Rep

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Broadband absorbers are required for solar energy harvesting because they efficiently absorb the incident photon in the wide-ranging solar spectrum. To ensure high absorption of photons, metamaterial absorbers (MMAs) have been a growing area of interest in recent years. In this article, an MMA is proposed using a metal–insulator–metal (MIM) structure (Ni–SiO2–Ni) that shows a near-unity broadband absorption of wavelengths from 300 to 1600 nm, with a 95.77% average absorption and a peak absorption of 99.999% at 772.82 nm. The MMA is polarization insensitive as well as wide incident angle stable. Analysis of the effects of mechanical bending on the absorption of the proposed structure shows that absorption holds satisfactory values at different degrees of mechanical loading. The suggested MMA unit cell structure was computationally simulated using the Finite Integration Technique (FIT) and verified using the Finite Element Method (FEM). To analyze the feasibility of the proposed MMA as a solar cell, it is investigated with the universal AM 1.5 solar spectrum characteristics. Besides solar energy harvesting, the proposed MMA unit cell may be employed in a variety of diverse optical applications, including sensors, detectors, and imaging.

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Section: Resultsmentioning

confidence: 90%

Polarization and angular insensitive bendable metamaterial absorber for UV to NIR range

Shuvo

Hossain

Mahmud

et al. 2022

Sci Rep

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show abstract

“…In this paper, we propose a metamaterial [25][26][27][28][29][30][31][32] absorber that exhibits three diferent absorption peaks. A metamaterial-based ultrabroad band absorber is proposed at the THz range.…”

Section: Introductionmentioning

confidence: 99%

Polarization Stable Triband Thin Square-Shaped Metamaterial Absorber

Lakshmi¹,

Christydass²,

Kannadhasan³

et al. 2023

International Journal of Antennas and Propagation

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An efficient triband metamaterial absorber is presented for X- and K-band applications. The unit cell is of simple shape. The absorber is fabricated on a thin polyamide, which makes it flexible. The parameters of the designed absorber are optimized. The simulated results show that it has good absorption rate and polarization stability. The stability is exhibited over a wide range in both TE and TE modes of the incident waves. The measured results are on par with the simulated results. The measurement is carried out with the waveguide measurement method.

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Thin Films and/or Coating for Electromagnetic Interference and Stealth

Wang¹,

Song²

2021

Inorganic and Organic Thin Films

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Enhancement of multi-band absorption based on compound structure metamaterials

Cited by 10 publications

References 41 publications

Polarization and angular insensitive bendable metamaterial absorber for UV to NIR range

Polarization and angular insensitive bendable metamaterial absorber for UV to NIR range

Polarization Stable Triband Thin Square-Shaped Metamaterial Absorber

Thin Films and/or Coating for Electromagnetic Interference and Stealth

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