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Polarization-multiplexed full-space metasurface simultaneously merging with an ultrawide-angle antireflection and a
Optics Express
|December 16, 2022
Summary
This study introduces a novel multifunctional metasurface that achieves broadband and wide-angle control of electromagnetic waves. It enables independent antireflection and retroreflection functions, enhancing electronic system integration.
Area of Science:
- Electromagnetism
- Materials Science
Background:
- Metasurfaces offer advanced control over electromagnetic waves.
- Existing designs often have limited angular range and functionality, wasting EM space.
Purpose of the Study:
- To propose a strategy for a broadband and wide-angle electromagnetic wavefront generator.
- To achieve independent antireflection for transverse electric (TE) waves and retroreflection for transverse magnetic (TM) waves.
Main Methods:
- Design of a three-layer cascaded metasurface.
- Utilizing anisotropic crossbar structures and orthogonal metal gratings.
- Leveraging band-stop and bandpass responses for distinct functions.
Main Results:
- Demonstration of a full-space metasurface with dual independent functions.
- Simulated and experimental results confirm theoretical predictions.
- Achieved broadband and wide-angle performance.
Conclusions:
- The proposed metasurface design enables unprecedented control over electromagnetic waves.
- This opens new avenues for multifunctional metasurfaces.
- Promotes broader engineering applications of advanced metadevices.
