ArticleNanophotonics (Berlin, Germany)2023
Electrically tunable THz graphene metasurface wave retarders.
Article in Nanophotonics (Berlin, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Transmissive Terahertz Tunable and Multifunctional Polarization Manipulation With Ge/VONanophotonics (Berlin, Germany) · 2026Article
- Graphene-based metasurface: dynamic optical control in ultrathin flat optics.Nanophotonics (Berlin, Germany) · 2025Review
- High accuracy inverse design of reconfigurable metasurfaces with transmission-reflection-integrated achromatic functionalities.Nanophotonics (Berlin, Germany) · 2025Article
- Dynamic nonlocal metasurface for multifunctional integration via phase-change materials.Nanophotonics (Berlin, Germany) · 2024Article
- Ultra-sensitive, graphene metasurface sensor integrated with the nonradiative anapole mode for detecting and differentiating two preservatives.Nanophotonics (Berlin, Germany) · 2024Article
- Reprogrammable reflection-transmission integrated coding metasurface for real-time terahertz wavefront manipulations in full-space.Scientific reports · 2024Article
- THz graphene-integrated metasurface for electrically reconfigurable polarization conversion.Nanophotonics (Berlin, Germany) · 2024Article
- Graphene-Tuned, Tightly Coupled Hybrid Plasmonic Meta-Atoms.Nanomaterials (Basel, Switzerland) · 2024Article
- Polarization and incident angle independent multifunctional tunable terahertz metasurface based on graphene.Scientific reports · 2024Article
- Frequency comb measurements for 6G terahertz nano/microphotonics and metamaterials.Nanophotonics (Berlin, Germany) · 2024Review
- Special issue: Metamaterials and plasmonics in Asia, a tribute to Byoungho Lee.Nanophotonics (Berlin, Germany) · 2023Article
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12 authors.
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Abstract
Anisotropic materials with chirality or birefringence can be used to manipulate the polarization states of electromagnetic waves. However, the comparatively low anisotropy of natural materials hinders the miniaturization of optical components and devices at terahertz frequencies. In this study, we experimentally demonstrate that the relative phase retardation of a THz wave can be electrically controlled by integrating patterned mono- and bilayer graphene onto an otherwise isotropic metasurface. Specifically, we show that a refractive index for one of the orthogonal polarization states can be electrically controlled by modulating graphene's conductivity, thereby weakening the capacitive coupling between adjacent meta-atoms in an anisotropic manner. With monolayer graphene, phase retardation of 15° to 81° between two orthogonal polarization states can be achieved. Maximum phase retardation of 90° through a metasurface with bilayer graphene suggests its use as a tunable quarter-wave plate. Continuous control from linear- to circular-polarization states may provide a wide range of opportunities for the development of compact THz polarization devices and polarization-sensitive THz technology.
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