Anisotropic infrared plasmonic broadband absorber based on graphene-black phosphorus multilayers
| Autor: | Hai-Jun Lin, Jinfeng Zhu, Kai-Da Xu, Rongrong Guo, Naixing Feng, Yijun Cai |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Infrared Graphene Physics::Optics 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Electric field 0103 physical sciences Optoelectronics Surface plasmon resonance 0210 nano-technology business Plasmon Localized surface plasmon Photonic crystal |
| Zdroj: | Optics express. 27(3) |
| ISSN: | 1094-4087 |
| Popis: | Two-dimensional materials (2DMs) such as graphene and black phosphorus (BP) have aroused considerable attentions in the past few years. Engineering and enhancing their light-matter interaction is possible due to their support for localized surface plasmon resonances in the infrared regime. In this paper, we have proposed an infrared broadband absorber consisting of multilayer graphene-BP nanoparticles sandwiched between dielectric layers. Benefiting from the properties of graphene and BP, the absorber exhibits both perfect broadband responses and strong anisotropy beyond individual graphene and BP layers. The absorber is tunable with the variation of geometric parameters as well as the doping levels of graphene and BP. The physical insight is revealed by electric field distributions. Furthermore, the angular robustness for incident wave is investigated. The proposed anisotropic omnidirectional broadband absorber may have promising potential applications in various biosensing, communication and imaging systems. |
| Databáze: | OpenAIRE |
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