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Updated: Feb 21, 2026
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
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Coupling surface waves from an oblique incident wave based on a metasurface
Optics Express
|February 20, 2026
Summary
This study presents a novel metasurface capable of fully converting oblique incident waves into surface waves. The metasurface offers flexible control over surface wave direction and power distribution for various incidence angles.
Area of Science:
- Electromagnetics and Metamaterials
- Wave Physics
Background:
- Metasurfaces enable manipulation of electromagnetic waves.
- Controlling surface waves under oblique incidence is challenging.
Purpose of the Study:
- To develop a metasurface for complete conversion of oblique incident waves into surface waves.
- To demonstrate flexible control over surface wave direction and power distribution.
Main Methods:
- Design of a metasurface with a tailored impedance profile using subwavelength unit cells.
- Utilizing TE-polarized Gaussian waves at various incidence angles (+40°, -40°, 0°, +20°, +50°) for validation.
- Fabrication of a physical prototype for experimental verification.
Main Results:
- Achieved complete conversion of incident oblique waves into surface waves.
- Demonstrated precise control over surface wave direction and power distribution.
- Validated the metasurface's capability across a broad range of incidence angles.
Conclusions:
- The proposed metasurface design approach effectively controls coupled surface waves under oblique incidence.
- Numerical simulations and experimental measurements confirm the design's effectiveness.
- The technology offers flexible design of surface wave coupling metasurfaces.
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