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Related Experiment Video

Updated: May 14, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Terahertz active spatial filtering through optically tunable hyperbolic metamaterials.

Carlo Rizza1, Alessandro Ciattoni, Elisa Spinozzi

  • 1Dipartimento di Scienza e Alta Tecnologia, Università dell’Insubria, Como, Italy.

Optics Letters
|February 6, 2013
PubMed
Summary
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This study introduces infrared-driven hyperbolic metamaterials for spatial filtering of terahertz (THz) radiation. The tunable device utilizes unique material properties to selectively block specific terahertz frequencies.

Area of Science:

  • Condensed matter physics
  • Metamaterials science
  • Terahertz (THz) photonics

Background:

  • Hyperbolic metamaterials exhibit unique electromagnetic properties.
  • Spatial filtering is crucial for controlling electromagnetic waves.
  • Terahertz (THz) radiation applications require advanced manipulation techniques.

Purpose of the Study:

  • To theoretically investigate infrared-driven hyperbolic metamaterials for THz spatial filtering.
  • To demonstrate tunable control over THz radiation using metamaterial properties.
  • To explore the interplay between infrared light and metamaterial response.

Main Methods:

  • Theoretical modeling of metamaterial electromagnetic response.
  • Homogenization of layered semiconductor-dielectric structures.

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Fabricating Metamaterials Using the Fiber Drawing Method
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Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
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Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

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Related Experiment Videos

Last Updated: May 14, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Fabricating Metamaterials Using the Fiber Drawing Method
11:57

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

  • Numerical full-wave simulations coupled with charge carrier dynamics.
  • Analysis of hyperbolic dispersion and permittivity properties.

    • Main Results:

    • Demonstrated hyperbolic metamaterial with sign-different principal permittivities at THz frequencies.
    • Showcased spatial filtering capability for THz radiation.
    • Achieved tunable filtering bandwidth by adjusting infrared radiation intensity.
    • Validated device functionality through coupled simulations.

    Conclusions:

    • Infrared-driven hyperbolic metamaterials offer a novel approach for THz spatial filtering.
    • Tunable filtering is achievable by controlling photoexcited charge carriers with infrared light.
    • The proposed device has potential applications in THz technology and sensing.