Ultra-wideband polarization insensitive metasurface absorber with high angular stability for infrared, visible and ultraviolet regions

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-07-10 DOI:10.1016/j.matlet.2025.139084

Taha Sheheryar , Ye Tian , Bo Lv , Sijie Wang , Jin Yuxi , Xuanrui Zhang , Hongxin Qi , Chengyi Wang , Peng Wang , Guanda Wu , Chao Gao , Lei Gao

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引用次数: 0

Abstract

This study presents an ultra-wideband metasurface absorber utilizing a metal-dielectric-metal structure for efficient absorption across the infrared, visible and ultraviolet (UV) spectra. The compact absorber with dimensions 30 × 30 × 5

{n m}^{3}

achieves a high absorption rate exceeding 90 % from 304 THz to 7960 THz (37.7–987 nm) with an average absorption of 97.63 %. The design maintains >97 % absorption in the range of 1920–7272 THz and displays complete polarization insensitivity. It remains highly effective under oblique incidences and sustains absorption averages of 96.43 % at 50° and 83.29 % at 70°. Compared to existing designs, the proposed absorber not only provides exceptional broadband coverage but also maintains superior efficiency across a wider range of wavelengths which makes the absorber a promising candidate for photodetectors, sensing energy harvesting and stealth applications.

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超宽带偏振不敏感超表面吸收剂，具有高角稳定性的红外，可见光和紫外线区域

本研究提出了一种超宽带超表面吸收器，利用金属-介电-金属结构有效吸收红外、可见光和紫外光谱。尺寸为30 × 30 × 5 nm3的紧凑吸收体在304 THz ~ 7960 THz （37.7 ~ 987 nm）范围内的吸收率超过90%，平均吸收率为97.63%。该设计在1920-7272太赫兹范围内保持97%的吸收，并表现出完全的极化不敏感。它在斜入射下仍然非常有效，在50°和70°时的平均吸收率分别为96.43%和83.29%。与现有设计相比，所提出的吸收器不仅提供了卓越的宽带覆盖范围，而且在更宽的波长范围内保持了卓越的效率，这使得吸收器成为光电探测器、传感能量收集和隐身应用的有希望的候选者。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive