ArticleNanophotonics (Berlin, Germany)2023
Dual channel transformation of scalar and vector terahertz beams along the optical path based on dielectric metasurface.
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 4 papers.
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Who cites it
4 citing papers in PubMed.
- Dielectric Metasurface for Generating Longitudinally Separated Dual-Channel Focused Vectorial Structured Light.Nanomaterials (Basel, Switzerland) · 2026Article
- Generation of Higher-Order Poincaré Beams with Polarization States Varying Along the Propagation Direction Based on Dielectric Metasurfaces.Nanomaterials (Basel, Switzerland) · 2025Article
- Longitudinal Multi-Channel Focused Vortex and Vector Beams Generation by Quarter-Wave Plate Meta-Atom Metasurfaces.Nanomaterials (Basel, Switzerland) · 2025Article
- On-demand Doppler-offset beamforming with intelligent spatiotemporal metasurfaces.Nanophotonics (Berlin, Germany) · 2024Article
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Authors and funding
13 authors.
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Abstract
The research on terahertz wave manipulation based on metasurfaces has gradually deepened, and the number of functions or electromagnetic control dimensions in a single device is constantly increasing. For the spatial dimension of terahertz field regulation, its design degrees of freedom have been expanded from a single transverse plane to the propagation path. In this paper, we propose a novel circularly polarization multiplexed metasurface for dual channel terahertz wave transmission control. Based on the spatial integration of two heterogeneous meta-atoms, which are spin-decoupled and isotropic, respectively, there are four phase channels that can be used at the same time, thus achieving different switching between vector and scalar beams in different circularly polarization channels along the optical path. For linearly polarized wave incidence, the device exhibits conversion between different vector beams longitudinally. To control more electric field components, we combine focused wavefront design with vector or scalar fields and utilize the focusing induced spin-orbit coupling effect, then complex amplitude switching of longitudinal electric field components is obtained. This article extends the manipulation of terahertz waves along the propagation trajectory based on metasurface from single to dual channel for the first time, providing a reference for the design of multifunctional meta-device in terahertz band.
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