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Related Experiment Video

Updated: May 11, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Electrically driven nanopillars for THz quantum cascade lasers.

M I Amanti1, A Bismuto, M Beck

  • 1Institute for Quantum Electronics, ETH-Zurich, CH-8093 Zurich, Switzerland. amanti@univ-paris-diderot.fr

Optics Express
|May 15, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers developed a fast, scalable method to create tiny pillars for terahertz quantum cascade lasers. This breakthrough enables electrical injection and terahertz light emission, paving the way for advanced laser technology.

Area of Science:

  • Optoelectronics
  • Nanotechnology
  • Quantum Optics

Background:

  • Terahertz (THz) quantum cascade lasers (QCLs) are crucial for spectroscopy and imaging.
  • Fabricating dense, high-performance THz QCL active media remains a challenge.
  • Miniaturization into zero-dimensional structures is key for enhanced laser performance.

Purpose of the Study:

  • To present a novel, rapid, and parallel fabrication process for large-scale arrays of electrically driven nanopillars.
  • To demonstrate the feasibility of electrical injection into these nanopillars for THz applications.
  • To investigate the potential of these structures for advanced terahertz quantum cascade laser designs.

Main Methods:

  • Developed a rapid and parallel fabrication technique for nanopillar arrays.

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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Related Experiment Videos

Last Updated: May 11, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

  • Fabricated nanopillars with 200 nm diameter and 2 µm height over a 1 mm² surface area.
  • Utilized electrical injection to stimulate THz emission from the nanopillar structures.

    • Main Results:

    • Successfully fabricated large-scale arrays of electrically driven nanopillars.
    • Demonstrated electrical injection into nanopillars of specified dimensions.
    • Observed terahertz (THz) electroluminescence originating from the fabricated nanopillars.

    Conclusions:

    • The developed fabrication process is suitable for large-scale production of THz QCL active media.
    • Electrically driven nanopillars show promise for efficient THz light generation.
    • This work represents a significant advancement towards realizing zero-dimensional structures for THz quantum cascade lasers.