Engineering of Ultra-wide Bandwidth Metamaterial Absorber with Various Shaped Resonators in the Visible to Far-Infrared Spectrum

IF 4.3 4区物理与天体物理 Q2 CHEMISTRY, PHYSICAL

Plasmonics Pub Date : 2025-02-01 DOI:10.1007/s11468-025-02793-z

Raj Kumar, Rishabh Gupta, Ashwini Kumar Mishra, Neha Singh, Praveen C. Pandey, Bipin K. Singh

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引用次数: 0

Abstract

We have theoretically investigated the engineering of a highly efficient metamaterial (MTM) absorber with nanocircular ring resonators of nickel (Ni) metal for the absorption of visible to far-infrared (400 nm to 4000 nm). A metal–insulator-metal structure is used in the design of the proposed MTM absorber. We have observed the high absorption values with varying top resonator designs Ni-metal compared to other considered metals. The proposed absorber exhibits an average absorption of 95.34% for transverse electric (TE) and transverse magnetic (TM) modes for wavelengths 400 nm to 4000 nm. The CST simulation software analyzes the absorber’s properties for different structural parameters. The average absorption is attained over 90% at different incidence angles and independent of polarization angles. Moreover, we have investigated the absorption performance using various structural characteristics. Short-circuit current densities (Jsc) are investigated using a global air mass of 1.5 (AM1.5) solar spectrum at various incidence angles. The proposed absorber containing Ni metal nanoresonators is designed as an alternative for thermal, emission, photovoltaic, and energy harvesting applications due to its attractive functionality, including geometry, cost, polarization insensitivity, large bandwidth, and thermal robustness.

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可见光到远红外光谱中具有不同形状谐振腔的超宽带超材料吸收器工程

我们从理论上研究了一种高效的超材料（MTM）吸收体的工程设计，该吸收体具有纳米环形镍（Ni）金属谐振器，用于吸收可见光到远红外（400 nm至4000 nm）。所提出的MTM吸收器采用金属-绝缘子-金属结构设计。我们已经观察到不同顶部谐振器设计的高吸收值，与其他考虑的金属相比，镍金属。在波长400 ~ 4000 nm范围内，该吸收剂对横向电（TE）和横向磁（TM）模式的平均吸收率为95.34%。CST仿真软件分析了不同结构参数下吸振器的性能。不同入射角下的平均吸收率均在90%以上，且与偏振角无关。此外，我们还研究了不同结构特性对吸声性能的影响。利用不同入射角1.5太阳光谱的全球气团研究了短路电流密度（Jsc）。所提出的含镍金属纳米谐振器的吸收器被设计为热、发射、光伏和能量收集应用的替代方案，因为它具有吸引人的功能，包括几何形状、成本、极化不敏感、大带宽和热鲁棒性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plasmonics 工程技术-材料科学：综合

CiteScore

5.90

自引率

6.70%

发文量

164

审稿时长

2.1 months

期刊介绍： Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons. Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.