ArticleNanomaterials (Basel, Switzerland)2021
Design of Multifunctional Janus Metasurface Based on Subwavelength Grating.
Article in Nanomaterials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Low profile high gain RHCP antenna for L-Band and S-Band using rectangular ring metasurface with backlobe suppression.PloS one · 2024Article
- A Single-Celled Metasurface for Multipolarization Generation and Wavefront Manipulation.Nanomaterials (Basel, Switzerland) · 2022Article
- Sub-wavelength patterned pulse laser lithography for efficient fabrication of large-area metasurfaces.Nature communications · 2022Article
- Multi-Band High-Efficiency Multi-Functional Polarization Controller Based on Terahertz Metasurface.Nanomaterials (Basel, Switzerland) · 2022Article
- Multifunctional Plasmonic Grating Based on the Phase Modulation of Excitation Light.Nanomaterials (Basel, Switzerland) · 2021Article
- High-Performance Asymmetric Optical Transmission Based on a Dielectric-Metal Metasurface.Nanomaterials (Basel, Switzerland) · 2021Article
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Authors and funding
5 authors.
Funding
Abstract
In this paper, a Janus metasurface is designed by breaking the structural symmetry based on the polarization selection property of subwavelength grating. The structure comprises three layers: a top layer having a metallic nanostructure, a dielectric spacer, and a bottom layer having subwavelength grating. For a forward incidence, the metal-insulator-metal (MIM) structure operates as a gap plasmonic cavity if the linearly polarized (LP) component is parallel to the grating wires. It also acts as a high-efficiency dual-layer grating polarizer for the orthogonal LP component. For the backward incidence, the high reflectance of the grating blocks the function of the gap plasmonic cavity, leading to its pure functioning as a polarizer. A bifunctional Janus metasurface for 45 degrees beam deflector and polarizer, with a transmission of 0.87 and extinction ratio of 3840, is designed at 1.55 μm and is investigated to prove the validity of the proposed strategy. Moreover, the proposed metasurface can be cascaded to achieve more flexible functions since these functions are independent in terms of operational mechanism and structural parameters. A trifunctional Janus metasurface that acts as a focusing lens, as a reflector, and as a polarizer is designed based on this strategy. The proposed metasurface and the design strategy provide convenience and flexibility in the design of multifunctional, miniaturized, and integrated optical components for polarization-related analysis and for detection systems.
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