Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors
Source abstract
Abstract
Plasmonic Bragg reflectors based on graphene with multiple channeled phenomena are proposed and investigated numerically. As a mid-infrared waveguide, the monolayer graphene exhibits locally variable optical properties through the modulation of electric fields. The periodical change of the effective refractive index (ERI) on graphene can be determined by applying external gate voltage. When we introduce an unmatched configuration or gate voltage, periodicity is disrupted, and a defect resonance mode is generated. At this point, the structure can be regard as a Fabry-Perot cavity. Accordingly, multiple-channel effects can be achieved by introducing cascaded multiple defects or including double symmetrical Fabry-Perot structures. This design shows applications potential in the graphene-based optoelectronic devices, particularly in the development of low-cost hyperspectral imaging sensors in mid-infrared region.
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Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Gold and Silver Nanoparticles Synthesis and Applications · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Jiangnan University 1 School of Science, Optoelectronic Engineering and Technology Research Center, , Wuxi 214122, China
Nanjing University of Information Science & Technology 2 School of Physics and Optoelectronic Engineering, , Nanjing 210044, China
Nanjing University of Information Science & Technology 3 Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology (CICAEET), , Nanjing 210044, China
Funding
Fundamental Research Funds for the Cental Universities · Innovation Project of Graduate Trainning of Jiangsu Province · Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province
References (30)
Show source-provided references
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