基于 MDMDM 结构的超宽带红外超材料吸收器用于光学传感

IF 2.6 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Frontiers in Astronomy and Space Sciences Pub Date : 2024-01-05 DOI:10.3389/fspas.2023.1338284

Fengjie Li, Jiansen Du, Shang Wang, Ruitao Yu, Xi Wang, Tiqiang Zhang, Zongtao Chi, Bin Wang, Ning Li

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引用次数: 0

摘要

红外观测是研究天文学天体的重要工具。超材料因其独特的电磁可调谐特性，在光学领域有着广阔的应用前景。为了获得红外区域的超宽带高吸收材料，我们根据表面等离子体极化子（SPP）共振和磁共振腔原理，提出了一种使用钛（Ti）纳米交叉层的金属-电介质-金属-电介质-金属（MDMDM）超材料吸收器。我们仔细研究了每一层的几何参数。研究了入射角从 0°到 60°对横向电平面波和横向磁平面波的影响。从近红外到中红外区域都实现了近乎完美的吸收性能。从 2.05 到 6.08 μm 的平均吸收率高达 97.41%。该吸收器具有偏振敏感特性。在 2.55 和 5.24 μm 处的吸收峰值分别为 99.50% 和 99.80%。这种材料有望应用于天文成像、火山和火灾探测、遥感、生物监测和其他光学设备。

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Ultra-broadband infrared metamaterial absorber based on MDMDM structure for optical sensing

Infrared observation is a crucial tool in the study of astronomical celestial bodies. Metamaterials have a vast prospect for applications in the field of optics due to their unique electromagnetic tunable characteristics. In order to obtain an ultra-broadband high absorption material in the infrared region, we proposed a metal-dielectric-metal-dielectric-metal (MDMDM) metamaterial absorber using a titanium (Ti) nano-cross layer based on surface plasmon polariton (SPP) resonance and magnetic resonance cavity principles. The geometrical parameters of each layer have been examined carefully. The influence of incident angle from 0° to 60° is investigated for transverse electric and transverse magnetic plane-waves. Near-perfect absorption performance is achieved from near-infrared to mid-infrared region. The average absorption reaches as high as 97.41% from 2.05 to 6.08 μm. The absorber exhibits polarization-sensitive characteristics. The absorption peaks are 99.50% and 99.80% at 2.55 and 5.24 μm, respectively. The proposed material has potential applications in astronomical imaging, volcano and fire detection, remote sensing, biological monitoring, and other optical devices.

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