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Related Concept Videos

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Related Experiment Video

Updated: Feb 24, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
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Bridging Mid- and Near-Infrared by Combining Optomechanics and Self-Mixing.

Tecla Gabbrielli1,2, Chenghong Zhang1,2, Francesco Cappelli1,2

  • 1CNR-INO - Istituto Nazionale di Ottica, Via Carrara, 1, Sesto Fiorentino, Florence 50019, Italy.

ACS Photonics
|February 23, 2026
PubMed
Summary

This study introduces a novel optomechanical platform using self-mixing to transfer information between near- and mid-infrared light. This innovative technique enables versatile spectral linking for advanced communication and sensing applications.

Keywords:
feedback interferometryinformation transductioninfraredoptomechanicsquantum cascade laserself-mixing

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Area of Science:

  • Optomechanics
  • Infrared Spectroscopy
  • Quantum Cascade Lasers

Background:

  • Optomechanical systems are crucial for sensing and information transfer.
  • Bridging different infrared spectral regions presents significant challenges.

Purpose of the Study:

  • To develop a self-mixing-assisted optomechanical platform.
  • To enable information transfer between near- and mid-infrared radiation.

Main Methods:

  • Utilizing the self-mixing signal of a mid-infrared quantum cascade laser.
  • Detecting membrane oscillation driven by near-infrared light-induced forces.
  • Amplitude modulation of the excitation beam at the membrane resonance frequency.

Main Results:

  • Successful demonstration of information transfer across spectral regions.
  • The platform leverages the spectral broadness of the technique.
  • Detection of membrane oscillation via self-mixing signal.

Conclusions:

  • The self-mixing-assisted optomechanical platform offers versatile spectral linking.
  • This technique shows promise for free-space communication.
  • Potential for advanced sensing systems using this platform.