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Updated: Jan 19, 2026
13:44
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
15.9K
Integrated metamaterial with functionalities of absorption and electromagnetically induced transparency.
Optics Express
|September 13, 2019
Summary
This study presents a switchable metamaterial using vanadium dioxide. It achieves tunable terahertz absorption and electromagnetically induced transparency in a single device, paving the way for multifunctional applications.
Area of Science:
- Metamaterials
- Terahertz Technology
- Phase-Change Materials
Background:
- Metamaterials offer unique electromagnetic properties.
- Phase-change materials like vanadium dioxide exhibit tunable states.
- Bifunctional devices are desirable for advanced applications.
Purpose of the Study:
- To propose a switchable metamaterial with dual functionalities.
- To utilize the phase-transition properties of vanadium dioxide.
- To achieve tunable terahertz absorption and electromagnetically induced transparency.
Main Methods:
- Design of a hybrid metamaterial structure.
- Incorporation of a vanadium dioxide film for phase transition.
- Analysis of electromagnetic response in terahertz region.
Main Results:
- Achieved near-perfect absorption at 0.498 THz in the metallic state of vanadium dioxide.
- Demonstrated polarization and wide-angle insensitivity for the absorber.
- Observed electromagnetically induced transparency in the insulating state of vanadium dioxide.
Conclusions:
- The designed metamaterial exhibits switchable absorption and transparency.
- Vanadium dioxide enables bifunctional operation in a single device.
- This work opens avenues for tunable terahertz devices.
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