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Related Experiment Video

Updated: Jun 23, 2025

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Polarization and Incident Angle Independent Multifunctional and Multiband Tunable THz Metasurface Based on VO2.

Rehmat Iqbal1, Ubaid Ur Rahman Qureshi2, Cao Jie1,3

  • 1Biomimetic Robots and System, Ministry of Education, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China.

Nanomaterials (Basel, Switzerland)
|June 26, 2024
PubMed
Summary

This study introduces a novel terahertz tunable metasurface using a vanadium dioxide (VO2)-metal hybrid structure. It offers versatile functionalities like absorption and polarization conversion, advancing terahertz device design.

Keywords:
absorptionmetasurfacepolarization anglepolarization conversionterahertz (THz)vanadium dioxide (VO2)

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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Area of Science:

  • Applied Physics
  • Materials Science
  • Electromagnetics

Background:

  • Current metasurfaces often suffer from single functionality and complex designs.
  • There is a need for adaptable and multifunctional terahertz devices.

Purpose of the Study:

  • To propose a novel multifunctional and multiband tunable terahertz metasurface.
  • To overcome the limitations of existing single-function metasurfaces.

Main Methods:

  • A terahertz metasurface was designed using a vanadium dioxide (VO2)-metal hybrid structure.
  • The structure consists of a VO2-metal resonance layer, a polyimide dielectric layer, and a gold film.

Main Results:

  • The metasurface demonstrated polarization and incident angle independence.
  • Tunable terahertz functionalities including single-band absorption, broadband absorption, and multiband perfect polarization conversion were achieved.
  • The varying conductivity states of VO2 enabled these diverse functionalities.

Conclusions:

  • The proposed tunable metasurface offers enhanced functional adaptability for terahertz applications.
  • This design expands options for future terahertz device development.