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Related Experiment Video

Updated: Feb 8, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Controlled Defect Based Ultra Broadband Full-sized Metamaterial Absorber.

Manh Cuong Tran¹, Dinh Hai Le², Van Hai Pham³

¹Faculty of Physics, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam. tmcuong@hnue.edu.vn.

Scientific Reports

|June 24, 2018

Summary

Researchers developed novel metamaterial absorbers with ultra-broadband absorption. These structures achieve 95% absorption over a 5 GHz bandwidth and can be scaled to 5 THz for telecommunication and sensing applications.

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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

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Area of Science:

Electromagnetics
Materials Science

Background:

Metamaterials offer unique electromagnetic properties.
Broadband absorbers are crucial for various applications, including telecommunications and sensing.
Existing metamaterial absorbers often have limited bandwidth.

Purpose of the Study:

To design and investigate full-sized metamaterial absorber structures.
To achieve ultra-broadband absorption in the GHz and THz frequency regions.
To enhance the bandwidth of metamaterial absorbers through structural manipulation.

Main Methods:

Numerical simulations and experimental investigations were performed.
Unit cells were modified by altering the number and position of defect elements.
The concept was extrapolated from GHz to THz frequencies.

Main Results:

The proposed metamaterial structures exhibit ultra-broadband absorbance.
A 5 GHz bandwidth with 95% absorption was achieved in the GHz region.
The method successfully extended the bandwidth to 5 THz in the THz region.

Conclusions:

The optimized metamaterial absorber design offers significant bandwidth enhancement.
The demonstrated approach is effective for broadband absorption in both GHz and THz ranges.
These absorbers have potential applications in advanced telecommunication systems, imaging, and sensing.