ArticleNanomaterials (Basel, Switzerland)2022
Dynamically Tunable and Multifunctional Polarization Beam Splitters Based on Graphene Metasurfaces.
Article in Nanomaterials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- 1 × 2 Graphene Surface Plasmon Waveguide Beam Splitter Based on Self-Imaging.Nanomaterials (Basel, Switzerland) · 2024Article
- Recent Advances in Reconfigurable Metasurfaces: Principle and Applications.Nanomaterials (Basel, Switzerland) · 2023Review
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10 authors.
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Abstract
Based on coupled-mode theory (CMT) and the finite-difference time-domain (FDTD) approach, we propose a graphene metasurface-based and multifunctional polarization beam splitter that is dynamically tunable. The structure, comprising two graphene strips at the top and bottom and four triangular graphene blocks in the center layer, can achieve triple plasma-induced transparency (PIT). In a single polarization state, the computational results reveal that synchronous or asynchronous six-mode electro-optical switching modulation may be performed by modifying the Fermi levels of graphene, with a maximum modulation degree of amplitude (MDA) of 97.6% at 5.148 THz. In addition, by varying the polarization angle, a polarization-sensitive, tunable polarization beam splitter (PBS) with an extinction ratio and insertion loss of 19.6 dB and 0.35 dB at 6.143 THz, respectively, and a frequency modulation degree of 25.2% was realized. Combining PIT with polarization sensitivity provides a viable platform and concept for developing graphene metasurface-based multifunctional and tunable polarization devices.
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