Infrared band ultra-wideband metamaterial absorption device based on cylindrical multiscale resonator

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-06-05 DOI:10.1039/D5CP00968E

Jiao Wang, Qianju Song, Hua Yang, Chaojun Tang, Zao Yi and Jianguo Zhang

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Abstract

Broadband absorption in the mid-infrared and far-infrared regions is of great significance in science and technology. Herein, we developed a mid-far infrared metamaterial absorber, and finite-difference time-domain simulation calculations showed that its average absorption rate in the 6.73–16.65 μm band was 96.01%. At the same time, although its absorption performance depended on the polarization state and incidence angle, it showed relative stability in a wide angle range. FDTD electromagnetic field analysis enabled the visualization of the electric and magnetic field intensity distributions within the absorber, demonstrating that the absorber exhibits multiple resonance modes, including surface plasmon resonance (SPR), localized surface plasmon resonance (LSPR), and Fabry–Perot cavity resonance. Meanwhile, adjusting the thickness of the absorption layer and the periodic geometry parameters enabled the optimization of the absorption performance of the developed absorber. In addition, different microstructures and different top materials had an influence on its absorption rate. Thus, the developed absorber has high practical value for application in thermoelectric devices, infrared imaging and thermal detection.

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基于圆柱形多尺度谐振器的红外波段超宽带超材料吸收装置

中红外和远红外波段的宽带吸收在科学技术上具有重要意义。本文提出了一种中远红外超材料吸收体，时域有限差分仿真计算表明，其吸收率在6.73 ~ 16.65 μm波段，平均吸收率为96.01%。同时，虽然吸收性能取决于偏振态和入射角，但在较宽的角度范围内表现出相对稳定性。利用时域有限差分电磁场分析可视化吸收器内部的电场和磁场强度分布，可以知道吸收器的共振模式有表面等离子体共振（SPR）、局域表面等离子体共振（LSPR）和法布里-珀罗腔共振。同时，调整吸收层厚度和周期几何参数可以优化吸收性能。此外，不同的微观结构和不同的顶部材料对吸收器的吸收率也有影响。该吸收剂在热电器件、红外成像和热探测等方面具有很高的实用价值。

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

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.