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Design of a mechanically adjustable multifunctional beam deflection metasurface
Optics Express
|August 13, 2025
Summary
This study introduces a mechanically adjustable metasurface for efficient beam deflection and polarization conversion. Its reconfigurable design allows dynamic control, offering a flexible, cost-effective solution for advanced electromagnetic applications.
Area of Science:
- Metamaterials and Nanophotonics
- Electromagnetics and Wave Manipulation
Background:
- Metasurfaces offer lightweight, efficient, and flexible solutions for electromagnetic wave control.
- Existing metasurface designs can be limited by fixed configurations and susceptibility to interference.
Purpose of the Study:
- To design and demonstrate a mechanically adjustable beam deflection metasurface.
- To achieve efficient beam deflection and polarization conversion with dynamic control.
Main Methods:
- Designed quasi-1-bit basic units with a 180° phase difference using an air grid structure.
- Developed a mechanically reconfigurable metasurface enabling horizontal translation of basic units.
Main Results:
- Achieved dynamic beam deflection ranging from 0° to 60° through structural translation.
- Experimental results closely matched simulation predictions, validating the metasurface's performance.
- Demonstrated efficient beam deflection and polarization conversion.
Conclusions:
- The proposed metasurface provides a versatile and cost-effective method for advanced electromagnetic beam control.
- The mechanically adjustable design avoids electromagnetic interference and enhances security.
- This work advances the application of metasurfaces in areas like wireless communication and imaging.
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