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Versatile polarization multiplexing and phase modulation using a compact metasurface.

Haozhe Wen, Yan Shao, Wei Gu

|August 13, 2025

Summary

This summary is machine-generated.

This study introduces a novel metasurface for terahertz applications, enabling efficient polarization conversion and phase manipulation. It demonstrates advanced multiplexing capabilities for next-generation wireless systems.

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Area of Science:

Metamaterials and Nanophotonics
Terahertz (THz) Technology
Electromagnetics

Background:

Metasurfaces offer unprecedented control over electromagnetic waves.
Efficient polarization and phase manipulation is crucial for advanced optical systems.
Terahertz frequency range presents unique opportunities and challenges for device design.

Purpose of the Study:

To design and demonstrate a multifunctional reflective polarization converter based on a metasurface.
To achieve efficient polarization multiplexing and phase manipulation in the terahertz range.
To explore applications in electronic countermeasures, satellite communications, and wireless systems.

Main Methods:

Design of a metasurface structure for terahertz wave manipulation.
Numerical simulations to analyze polarization conversion and phase modulation.
Investigation of functionalities including wave deflection, circular polarization conversion, and P-B phase manipulation.

Main Results:

The metasurface achieves efficient mutual conversion between linear and circular polarizations across two distinct terahertz bands (1.13-1.97 THz and 2.03-2.97 THz).
Demonstrates precise deflection of linearly polarized waves and P-B phase manipulation with uniform phase modulation.
Exhibits excellent beam focusing and efficient generation of orbital angular momentum (OAM) beams over a wide frequency range.

Conclusions:

The proposed metasurface offers versatile and efficient polarization and phase control in the terahertz domain.
Its multifunctional capabilities, including polarization multiplexing and OAM generation, highlight its potential for advanced applications.
The design provides a robust platform for developing next-generation terahertz devices and systems.