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Updated: Jun 13, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Fiber-based swept-source terahertz radar.

Yu-Wei Huang1, Tzu-Fang Tseng, Chung-Chiu Kuo

  • 1Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan.

Optics Letters
|May 4, 2010
PubMed
Summary
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We developed a room-temperature terahertz radar using fiber optics. This imaging radar can quickly locate concealed, moving live objects with high stability, utilizing terahertz radiation.

Area of Science:

  • Optics and Photonics
  • Terahertz Technology
  • Imaging Systems

Background:

  • Terahertz (THz) imaging offers unique advantages due to its non-ionizing nature and sensitivity to water content.
  • Developing compact, real-time THz imaging systems remains a challenge, particularly for dynamic object detection.

Purpose of the Study:

  • To demonstrate a novel all-terahertz swept-source imaging radar system.
  • To achieve real-time detection and localization of concealed moving live objects.
  • To leverage terahertz fibers for efficient radiation delivery and interferometry.

Main Methods:

  • Utilized terahertz fibers for radiation delivery and a terahertz-fiber directional coupler as a Michelson interferometer.
  • Employed an electrically swept terahertz source combined with a fast rotating mirror for high-speed scanning.

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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

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Last Updated: Jun 13, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

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Published on: August 30, 2012

  • Exploited the high water reflection contrast in the low terahertz frequency regime.

    • Main Results:

    • Successfully operated an all-terahertz swept-source imaging radar at room temperature.
    • Achieved high-speed imaging and obtained distance information of living objects.
    • Demonstrated real-time, high-stability localization of concealed moving live objects.

    Conclusions:

    • The fiber-based swept-source terahertz radar is a viable technology for real-time detection.
    • This system shows potential for applications requiring non-invasive, stable imaging of dynamic biological targets.
    • The use of terahertz fibers enhances the practicality and stability of THz radar systems.