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Updated: Jul 6, 2026
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Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
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Single-layer multifunctional wideband polarization conversion metasurface based on vanadium dioxide
Applied Optics
|September 22, 2025
Summary
This study introduces a novel vanadium dioxide metasurface for terahertz applications. The device offers switchable polarization conversion, enabling versatile functionalities for advanced terahertz systems.
Area of Science:
- Optics and Photonics
- Materials Science
- Electromagnetics
Background:
- Metasurfaces offer unique electromagnetic properties.
- Vanadium dioxide (VO2) exhibits temperature-dependent phase transitions.
- Terahertz (THz) technology requires advanced optical components.
Purpose of the Study:
- To propose a reflective multifunctional polarization conversion metasurface.
- To utilize vanadium dioxide for switchable THz applications.
- To design a lightweight and cost-effective device.
Main Methods:
- Design of a single-layer dielectric substrate metasurface.
- Exploitation of VO2 phase transition for tunable functionality.
- Characterization of polarization conversion performance across THz frequencies.
Main Results:
- Wideband cross-polarization conversion in VO2's insulated state (1.25-1.82 THz).
- Dual-wideband linear-to-circular polarization conversion in VO2's metallic state (0.92-1.12 THz and 1.39-1.91 THz).
- Demonstrated good angular stability for the metasurface.
Conclusions:
- The proposed metasurface offers switchable multifunctional polarization conversion.
- The device shows significant potential for THz communication, bio-detection, imaging, and sensing.
- Lightweight and cost-effective design achieved using a single-layer substrate.
