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 Concept Videos

The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

You might also read

Related Articles

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

Sort by
Same author

Cavity-driven attractive interactions in quantum materials.

Nature·2026
Same author

Production of radioactive traceable reference materials for measuring radioactive pollutants in the environment.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2025
Same author

THz optical beat-note detection with a fast superconducting hot electron bolometer operating up to 31 GHz.

Optics express·2023
Same author

Absolute frequency referencing in the long wave infrared using a quantum cascade laser frequency comb.

Optics express·2022
Same author

Coherently-averaged dual comb spectrometer at 7.7 µm with master and follower quantum cascade lasers.

Optics express·2021
Same author

Differential prognostic accuracy of right ventricular dysfunction, the Seattle heart failure model and the MAGGIC score in patients with severe mitral regurgitation undergoing the MitraClip® procedure.

International journal of cardiology. Heart & vasculature·2020

Related Experiment Video

Updated: Jun 11, 2026

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

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Broadband THz lasing from a photon-phonon quantum cascade structure.

G Scalari1, M I Amanti, C Walther

  • 1Institute of Quantum Electronics, Physics Department, ETH Zurich, Zurich, Switzerland. scalari@phys.ethz.ch

Optics Express
|July 1, 2010
PubMed
Summary

This study reports a novel two-quantum well, photon-phonon cascade laser emitting broadly from 2.8 to 4.1 THz. The device achieves high operating temperatures and powers, demonstrating potential for advanced terahertz applications.

More Related Videos

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

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Related Experiment Videos

Last Updated: Jun 11, 2026

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

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

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

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Area of Science:

  • Terahertz (THz) Photonics
  • Semiconductor Lasers
  • Quantum Cascade Structures

Background:

  • Broadband THz emission is crucial for advanced spectroscopy and imaging.
  • Existing THz sources often suffer from limited bandwidth or operating temperature.

Purpose of the Study:

  • To report a novel two-quantum well, photon-phonon cascade laser.
  • To characterize its broad frequency emission and operating parameters.

Main Methods:

  • Fabrication of a double-metal ridge waveguide structure.
  • Experimental characterization of laser emission spectrum and power.
  • Theoretical simulations using density matrix formalism.

Main Results:

  • Broadband laser emission achieved from 2.8 to 4.1 THz.
  • Maximum operating temperature of 125 K with peak optical power >30 mW.
  • Internal quantum efficiencies up to 43% at 10 K.
  • Laser operation observed in reverse bias up to 90 K.

Conclusions:

  • Coherent coupling between injector and upper lasing states explains the broadband gain.
  • The demonstrated device shows significant potential for compact and efficient THz sources.