Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: May 31, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Terahertz imaging through self-mixing in a quantum cascade laser.

Paul Dean1, Yah Leng Lim, Alex Valavanis

  • 1School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, UK. p.dean@leeds.ac.uk

Optics Letters
|July 5, 2011
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Machine Learning Models for Predicting Key Performance Characteristics of High-Temperature THz Quantum Cascade Lasers.

Nanomaterials (Basel, Switzerland)·2026
Same author

Pathways and pitfalls: a qualitative study of student experiences in biomedical science education.

FEBS open bio·2026
Same author

Impact of COVID-19 Booster Vaccination on Serum Redox Homeostasis.

International journal of molecular sciences·2026
Same author

Catalase Specifically Binds Antipsychotic Clozapine: Experimental and In Silico Insights into Interactions, Complex Stability, and Dose-Dependent Enzyme Activity Modulation.

Molecules (Basel, Switzerland)·2026
Same author

The balance between defence systems and horizontal gene transfer shapes adaptation in clinical strains of Acinetobacter spp.

Journal of applied microbiology·2026
Same author

Novel Pyridine-Based Thiazolyl-Hydrazone as a Promising Attenuator of <i>Pseudomonas aeruginosa</i> Pathogenicity by Targeting Quorum Sensing.

International journal of molecular sciences·2026

This study showcases terahertz (THz) imaging using a single quantum cascade laser (QCL) for both generating and detecting THz waves. The novel self-mixing technique allows for high-resolution imaging with a compact and sensitive setup.

Area of Science:

  • Optics and Photonics
  • Quantum Electronics
  • Terahertz Science and Technology

Background:

  • Terahertz (THz) imaging is crucial for various applications but often requires complex setups.
  • Quantum Cascade Lasers (QCLs) offer unique properties for THz generation and detection.

Purpose of the Study:

  • To demonstrate a simplified THz imaging system using a single Quantum Cascade Laser (QCL).
  • To explore the potential of self-mixing detection in QCLs for THz imaging.

Main Methods:

  • Utilizing a single QCL for both THz generation and sensing.
  • Employing self-mixing interferometry by monitoring voltage perturbations in the QCL.
  • Reflecting THz waves from external objects back into the QCL cavity.

More Related Videos

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Related Experiment Videos

Last Updated: May 31, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Main Results:

  • Achieved high-resolution reflection images of exemplar structures.
  • Demonstrated high sensitivity and a potentially fast response time.
  • Showcased a simple and compact optical design for THz imaging.

Conclusions:

  • Single-device THz imaging using QCL self-mixing is feasible and effective.
  • This technique offers a promising alternative for high-resolution THz imaging applications.
  • The self-mixing approach simplifies THz imaging systems, enhancing practicality.