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Related Experiment Video

Updated: Oct 15, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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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
PubMed
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This summary is machine-generated.

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.
Keywords:
absorptionelectromagnetic wavegraphenemetasurfaceterahertz

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  • 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.