ArticleNanophotonics (Berlin, Germany)2022
Multidimensional engineered metasurface for ultrafast terahertz switching at frequency-agile channels.
Article in Nanophotonics (Berlin, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Terahertz Metamaterials Inspired by Quantum Phenomena.Research (Washington, D.C.) · 2025Review
- Ultrafast All-Optical Switching Modulation of Terahertz Polarization Conversion Metasurfaces Based on Silicon.ACS omega · 2023Article
- Tunable resonance of a graphene-perovskite terahertz metasurface.Nanoscale advances · 2023Article
- Electric-field control of nonlinear THz spintronic emitters.Nature communications · 2022Article
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6 authors.
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Abstract
The ability to actively manipulate free-space optical signals by using tunable metasurfaces is extremely appealing for many device applications. However, integrating photoactive semiconductors into terahertz metamaterials still suffers from a limited functionality. The ultrafast switching in picosecond timescale can only be operated at a single frequency channel. In the hybrid metasurface proposed here, we experimentally demonstrate a dual-optically tunable metaphotonic device for ultrafast terahertz switching at frequency-agile channels. Picosecond ultrafast photoswitching with a 100% modulation depth is realized at a controllable operational frequency of either 0.55 THz or 0.86 THz. The broadband frequency agility and ultrafast amplitude modulation are independently controlled by continuous wave light and femtosecond laser pulse, respectively. The frequency-selective, temporally tunable, and multidimensionally-driven features can empower active metamaterials in advanced multiplexing of information, dual-channel wireless communication, and several other related fields.
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