纳米壳
材料科学
纳米光子学
吸收(声学)
等离子体子
宽带
纳米结构
光电子学
摩尔吸收率
光学
表面等离子体子
纳米技术
物理
复合材料
作者
Xiaoyun Jiang,Fei Fan,Feng Su,Tianhui Mu,Chan Huang,Lei‐Ming Zhou,Jigang Hu
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2024-03-18
卷期号:35 (23): 235201-235201
标识
DOI:10.1088/1361-6528/ad2f75
摘要
Abstract Achieving highly efficient broadband absorption is an important research area in nanophotonics. In this paper, a novel method is proposed to design broadband near-perfect absorbers, consisting of a four-layer hemispherical concentric nanoshell array. The proposed nanostructure supports absorptivity exceeding 95% in the entire visible region, and the absorption bandwidth is determined by the interaction or ‘hybridization’ of the plasmons of the inner and outer metal-based nanoshells. Moreover, the designed absorber has wide-angle capability and is insensitive to polarization. The simple structure, as well as the stable absorption properties, suggests that such core–shell nanostructures can serve as a potential candidate for many applications such as solar energy harvesting, photo-detection, and emissivity control.
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