Related Experiment Video
Updated: Oct 15, 2025
13:44
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
15.5K
Terahertz Absorber with Graphene Enhanced Polymer Hemispheres Array
Alesia Paddubskaya1, Nadzeya Valynets1, Sergey Maksimenko1
1Laboratory of Nanoelectromagnetics, Institute for Nuclear Problems of Belarusian State University, Bobruiskaya Str. 11, 220006 Minsk, Belarus.
Nanomaterials (Basel, Switzerland)
|October 23, 2021
Summary
We developed a 3D printing method for terahertz (THz) metasurfaces. This technique uses metal-coated polymer hemispheres to achieve near-zero THz reflectivity, paving the way for advanced THz photonics components.
Area of Science:
- Materials Science
- Optics and Photonics
- Electromagnetism
Background:
- Metasurfaces offer unique electromagnetic properties.
- Terahertz (THz) technology requires novel material fabrication methods.
- Controlling THz wave interaction with materials is crucial for device development.
Purpose of the Study:
- To introduce an innovative technique for fabricating THz metasurfaces.
- To demonstrate methods for suppressing THz reflectivity using polymer-based structures.
- To explore the potential for tailoring electromagnetic responses in THz photonics.
Main Methods:
- Fabrication of a regular array of polymer hemispheres using 3D printing.
- Deposition of a thin conductive metal layer onto the polymer hemispheres.
- Enhancement of the structure with graphene to broaden the functional frequency range.
Main Results:
- Achieved near-zero terahertz (THz) reflectivity by coating polymer hemispheres with a metal layer.
- Demonstrated that incorporating graphene broadens the frequency range of THz suppression.
- Validated a scalable technique for creating tunable THz metasurfaces.
Conclusions:
- The proposed 3D printing technique is effective for fabricating THz metasurfaces.
- The metal-coated polymer hemisphere structure enables significant THz reflectivity suppression.
- This method allows for the design and fabrication of diverse THz photonic components.
