Chongfan Technology
News
20
2026
-
07
Non‑interleaved Janus metasurface for arbitrary polarization‑independent wavefront engineering
Author:
The teams of Xumin Ding and Di Chang at Harbin Institute of Technology, Shah Nawaz Burokur at Paris Nanterre University, and Lei Zhu at Qiqihar University have proposed a novel non‑interleaved Janus metasurface for the microwave band, capable of achieving highly efficient asymmetric wavefront control for waves of arbitrary polarization. To validate its performance and potential applications, the authors designed two proof‑of‑concept metasurfaces that realize this functionality by simultaneously manipulating both geometric and propagation phases. Based on these principles, they engineered a metasurface that, when illuminated by counter‑propagating right‑hand circularly polarized light, generates orbital angular momentum with distinct topological charges. Furthermore, this metasurface incorporates a rotational degree of freedom for elliptical polarization control, enabling direction‑dependent holographic imaging: under elliptical illumination with an ellipticity of π/6 and a phase delay of π/3, it can project the numerals “4” and “7.” This design markedly expands polarization diversity while delivering compact, reconfigurable asymmetric wave manipulation, opening new avenues for future applications such as directional wireless communication.
The research findings were published on May 20, 2026, in Laser & Photonics Reviews, under the title “Non-Interleaved Janus Metasurface for Independent Wavefront Engineering of Arbitrary Polarizations.”
Figure 1: Schematic diagram of a Janus metasurface and its potential application as an intermediate propagation node positioned between distinct transmitters and receivers on either side.
Figure 2: Schematic diagram of forward and reverse illumination
Figure 3: Characteristics of Metatomic Units
Figure 4: 10 GHz OAM beam generation based on an asymmetric Janus metasurface.
Figure 5: Hologram Generation Based on Asymmetric Janus Metasurfaces
Source: Optics World
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