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Broadband light absorption by a hemispherical concentric nanoshell array.
- Source :
-
Nanotechnology [Nanotechnology] 2024 Mar 18; Vol. 35 (23). Date of Electronic Publication: 2024 Mar 18. - Publication Year :
- 2024
-
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.<br /> (© 2024 IOP Publishing Ltd.)
Details
- Language :
- English
- ISSN :
- 1361-6528
- Volume :
- 35
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 38430569
- Full Text :
- https://doi.org/10.1088/1361-6528/ad2f75